Injector spill valve meaning

Fuel injector: A remanufactured ISX fuel injector has new parts ranging from the spill valve, shim and NOP spring to screws and the actuator assembly. Cummins injectors also include new external O-rings and filters. Inframe engine rebuild kit with re-ring and fewer pistons: The ISX15 has an inframe rebuild option for when your pistons are in ...

The spill valve sits on top of the housing, and the best way to think of its operation is just like a tiny fuel injector. The amount of fuel we are feeding into the pump chamber is all controlled by the actuation of this valve. The valve is controlled by a spill control solenoid, which is the black plug on top you are all familiar with. The PCM ...Sep 5, 2023 · A spill valve operates on a diesel injector pump in a similar way as it would on any other machine. The valve is typically located between the fuel pump and the injectors and allows excess fuel pressure to be relieved. In a diesel engine, the fuel pressure must be carefully regulated to ensure the injection timing is correct. Injection timing, also called spill timing, is the moment when diesel fuel enters the cylinder during the combustion phase. When you adjust the timing, you can alter when the engine injects the fuel, therefore changing when combustion occurs.A spill valve (204) for spilling fuel from the injection chamber (162) is located at a lower end portion of the injection chamber (162), is spring biased to a closed position and is...12.7L Series 60. Manufacturer: Delphi. Warranty Policy: 12 Month, Unlimited Mileage. Note (s): - Surface lapping of each critical component. - Ensures pressure sealing of sub assemblies. - New nozzle, actuator valve, spill valve, NOP …In practice, many modern common rail injection systems will use both a pressure control valve on the rail and one of the forms of high pressure pump metering to control rail pressure. Figure 8 shows one example from an engine equipped with both a PCV and a FMV [2521]. At engine start and for preheating the fuel when temperatures are low, the ...

The controlled part of the injector is a solenoid-operated spill valve. Normally, it is open, allowing the fuel to return to the supply line when the pump plunger descends. When the solenoid is energized, the spill valve closes, and the fuel is forced through the spray tip into the cylinder. The four phases of EUI operation are: Fill phase If you decide to alter the fuel injection pump, you’ll need to: 1. Use a socket wrench on the front camshaft bolt to hand-turn the engine clockwise until the first cylinder is at TDC. 2. Both the intake and exhaust valves should be …Injectors. The injector is a device to deliver fuel intermittently into the engine cylinder at times that are synchronized with the engine camshaft position. The injector needle in an injector acts as a valve to open or close the passage to the injector hole (s). The injection valve cartridge is not securely fastened to the valve drive. FIX or WORKAROUND Inspect the injection valve cartridge and ensure that it is securely fastened to the valve drive with the 2-mm hex screw, remove if necessary to …Help! : r/DieselTechs. by Reasonable-Twist-333. Cummins isx15 injector spill valve. Help! Help! Loss of power replace injector #2 however keep getting injector spill valve. Went as far as bypassing the main harness to injectors and replacing ECU however I’m still getting this code. Any suggestions or ideas?

AutoDoc1. High School Diploma. 15,583 satisfied customers. 5.9 Cummins 12 valve I was try find out psi each cylinder. 5.9 Cummins 12 valve I was try find out psi each cylinder where injector is at but I got psi needle moving when cranking but it did not stay high or it go … read more.What the P0201 code means. The diagnostic trouble code P0201 tells us the ECM has detected a malfunction with the cylinder 1 injector circuit. This code indicates out-of-range performance was detected in the operation of cylinder 1 injector circuit. Once a malfunction is detected, a Check Engine Light is triggered and failsafe mode is enabled.The injector pipe leaking might mean one injector doesnt get the pressure it needs - these are 2 stage injectors, so one piston might be running lean. ... Spill control valve - should be 1-2 Ohms - 1.2 Ohms read Timing control valve - should be 10-14 Ohms - 11 Ohms read all a bit lower due to reduced temps outside.With electronic unit injectors, the spill valve controls your injection. The cam is always cycling the injector but the fuel just passes through it until the injector is energized from the ECM. Energizing the injector closes the spill valve and the fuel trapped in the injector gets injected out into the cylinder.Aug 30, 2007 · Sep 1, 2012. 0. Code pulls up for injector #6 mechanical system not responding. Most times it is a failed injector. Check for coolant in the fuel as well. The injector cup o-rings can leak coolant into the fuel and if let go for long enough will start to take out injectors. There is a repair to press a ring into the injector cup to help seal it ...

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Defective radiator cap pressure valve ..... Replace radiator cap Abnormal combustion Incorrect injection timing ..... Adjust injection timing Reduced injection pressure ..... Adjust injection pressure Poor fuel..... Use good quality fuelInjector spill valve Discussion in 'Kenworth Forum' started by insanityeight, May 13, 2018. May 13, 2018 #1. insanityeight Light Load Member. 287 110. Jul 26, 2013 birmingham al 0. I get this code in a 2014 t660 of and on every few minutes continually, but only when idling. Running down the road, it runs like a top.When an injector is switched on or off, the PCM expects the voltage and resistance to stay within a certain range. Or, if it doesn’t sense 12 volts on the trigger side of the injector (coming through the injector coil from the opposite side), it can use that information to store the P0203 code. It varies from OEM to OEM.If you decide to alter the fuel injection pump, you’ll need to: 1. Use a socket wrench on the front camshaft bolt to hand-turn the engine clockwise until the first cylinder is at TDC. 2. Both the intake and exhaust valves should be …

Oct 29, 2018 · Country Flag. Oct 29, 2018. #5. To add, putting a clear piece of fuel hose between the fuel filter and the pump will show any bubbles in the fuel. Running from a can of diesel into the fuel filter will eliminate tank and fuel pipe issues. There was a member on here that had a blockage in the return line. Check Injection Pump Drive Shaft Thrust Clearance. Install Crankshaft Pulley. Install Vacuum Pump. Cylinder Head Components. Cylinder Head Removal. Drain Engine Coolant. ... Spill Control Valve Relay Components. Spill Control Valve Relay Inspection. VSV for Intake Constructor Control Components.Spill buckets are located where the delivery driver connects the product and/or vapor recovery hoses to your tank. Spill buckets can be found directly above your UST, at a location that is away from your UST (remote), or both. They typically range in size from 5 to 25 gallons, and lids range from 1 to 2 feet in diameter. Spill bucketsJul 27, 2023 · The solid injection system is a method of fuel delivery used in Compression Ignition Engines (diesel engines). This system directly injects highly pressurised fuel into each individual cylinder. It offers a plethora of advantages, including enhanced fuel efficiency and engine performance. It is also environmentally friendly and has reduced ... spill valves are internal to the injector. the injector must just be replaced if you get that code. Since I don't have inside, is it possible to change the injector 1 and …Oct 21, 2016 · The injector, unlike in a gasoline engine, injects the fuel directly into the cylinder or a prechamber connected to the cylinder. The VE in the name of the Bosch pump used in the VW diesels and ... Jul 4, 2018 · This injection pressure is set by the manufacturer and depends engine to engine. A fuel injector consists of basically two main parts a nozzle and body. The nozzle and the injector body are made in pairs and carefully grounded to produce good quality oil seal. A fuel injector can achieve high pressure up to 500 bar by using spring loaded valve. @article{osti_6526388, title = {Fuel injection control based on spill port opening timing correction}, author = {Ban, M and Miyaki, M and Hasegawa, T and Kobayashi, F and Kobashi, M}, abstractNote = {This patent describes a fuel injection control system for an internal combustion engine, comprising: (a) a fuel injection pump including: a pump …Connection guidance. Injector back-leakage can also be referred to as injector spill testing or leak-off testing. Note: Diesel injector back-leakage, pressure and balance are dependent on fuel quality, the integrity of the high-pressure diesel pump priming circuit, the common rail high-pressure circuit, the engine load, and the common rail diesel control system/components.Buy GENUINE AND BRAND NEW DIESEL FUEL SPILL CONTROL VALVE, SOLENOID VALVE 096600-0033 at Aliexpress for . Find more , and products.There are two types of SPV (Spill Control Valve) that control the injection volume. Conventional type SPV (used in axial plunger type pump) Direct-acting type SPV (used in the radial plunger type pump for high-pressure applications) Conventional Type SPV. 1. Construction. The conventional type SPV consists of two valves: main valve and pilot ...Every 200k perform overhead, clean dpf, change def filter, clean egr valve, doser, flush egr cooler. Also change poost psi sensor. Paccar now recommends changing sensor everytime dpf filter baked. Do to soot and carbon plugging sensor. Also atmospheric psi sensor gets coated with soot will not compensate for changes in altitude properly.

When this valve (Spill valve solenoid SVS)is not energized or open, fuel cannot pressurize inside the pumping chamber and fuelmoves back and forth from the low-pressure fuel gallery surrounding the injector.Energizing the normally open solenoid builds-up pressure in the pumping chamber.Needle Valve Solenoid (NVS)The needle or nozzle control ...

To verify that the fuel injection pump is timed correctly, first check the alignment marks on the pump flange and gear housing. NOTE: 1 mm of rotation past the timing mark will advance or retard (depending on direction of rotation) the pump timing by 1 degree. The Lucas CAV DPA, DPS, Delphi DP210, Stanadyne DB4, and the Bosch® VE fuel injectionThe Toyota 1KZ-TE is a 3.0 l (2,982 cc, 181.97 cu-in) four cylinders, four-stroke cycle water-cooled turbocharged internal combustion diesel engine, manufactured by the Toyota Motor Corporation since 1993 to 2003. The 1KZ-TE engine has a cast-iron block with 96.0 mm (3.78 in) cylinder bores and a 103.0 mm (4.06 in) piston stroke for a capacity ...controlwasby means of a spill valve. In 1900 U.S. patent No. 654,140 was granted to Rudolph Diesel for a wedge controlled spill valve pump as shown in Fig. 5. The duration of the plunger stroke during wich the by-pass valve D was closed was lenghtened or reduced by moving the wedge K in or out, thus increasing or decreasing the fuel quantityThe fuel injector is an electromagnetic valve that when driven by the ECU delivers a metered quantity of fuel into the intake manifold (or combustion chamber in the GDI system). The ECU controls the fuel flow by pulse width modulation. The time the injector is driven into an open condition is determined by the following sensor inputs: Engine RPMIf dirt enters the electronic unit injector system, it can shorten the injector’s life, especially the popper/spill valve; it is the most vulnerable to dirt. Even though filters can downsize the dirt particles to 10 microns, however, some particles are less than 10 microns in size, and these cause damage.Purge pump at high flow rate (e.g., 5-10 mL/min.), prime system if necessary. (Prime each pump head separately.) If system has check valve, loosen valve to allow air to escape. If problem persists, flush system with 100% methanol or isopropanol. If problem still persists, contact system manufacturer.Oct 20, 2023 · 11-15-2018, (Subject: Injector Spill Valve ) Post: #3. indian_richard. Established (4 Likes) Posts: 49. Joined: Nov 2015. RE: Injector Spill Valve. (11-15-2018 )Unilevers Wrote: the spill valve on a common rail injector is internal to it.. Hook up insite and see what number its throwing the code for and change that injector. injector #6 pin 3 and the injector #6 harness connector pin 3. [a] If the resistance is greater than 3 Ω, replace the under valve cover injector harness. Refer to section 122.1.1.1. [b] If the resistance is less than 3 Ω, go to step 16. 16. Measure the resistance between pin 12 on the valve cover side of the Rear Injector Harness

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Every 200k perform overhead, clean dpf, change def filter, clean egr valve, doser, flush egr cooler. Also change poost psi sensor. Paccar now recommends changing sensor everytime dpf filter baked. Do to soot and carbon plugging sensor. Also atmospheric psi sensor gets coated with soot will not compensate for changes in altitude properly.spill valves are internal to the injector. the injector must just be replaced if you get that code. Since I don't have inside, is it possible to change the injector 1 and exchange it with injector 3 for example to make sure the injector is bad. Then the fault code should sow up at injector 3.#HOW SPILL CONTROL VALVE WORKS#SPV OPERATION#PLUNGER AND ROTORHEAD OPERATION#SPILL PORT VALVE#ROTARY INJECTION PUMP#DENSO INJECTION PUMP#HIGH PRESSURE DIESEL...inspect spill control valve fu-15 3. inspect injection pump correction resistors fu-15 4. page 238: injection pump click here to view chapter index 1kz-te pages from manual to model index fu- -15 engine fuel injection pump injection pump fu06y- -01 on - - vehicle inspection inspect engine speed sensor (see page ed - - 20) inspect spill control ...The PowerStroke fuel injection system is designed for diesel burning vehicles. It uses a combination of the hydraulic injectors of old diesel engines and the electric injection system of gasoline engines to provide diesel vehicles with a re...July 27, 2023 by Watanabe. What is spill timing? Injection timing, also called spill timing, is the moment when diesel fuel enters the cylinder during the combustion phase. The timing of the pump determines when it will inject fuel into the cylinder as the piston reaches the BTDC point. What is a spill control valve?The unit injector system is controlled elec-tronically. An electronic control unit calcu-lates start of injection and injection duration, which are controlled by a high-pressure sole-noid …Here are all the Cummins ISX codes available for the Cummins ECM. These Cummins trouble codes pertain to ISX engines built with the EGR system, but pre-DPF (2002 - 2006). Cummins ISX Codes 111-500. 111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component. 115 Engine Magnetic Speed/Position Lost Both of Two ...A mechanically actuated electronically controlled fuel injector includes a first electrical actuator that controls the position of a spill value, and a second electrical actuator to control pressure on a closing hydraulic surface associated with a nozzle check valve. The fuel injector is actuated via rotation of a cam to move a plunger to ...Plenty of things can cause this from a faulty fan clutch to a bad solenoid, switches, or wiring. By the way, if you get the injector spill valve code, you have an injector that needs to be replaced. Which KW dealer were you at. My local dealer in Carlisle Pa is great. They get you in and out fast and always go a great job. ….

The spill valve is in the injector and is there to return unneeded fuel back to tank. If this valve does not work you could be over fueling or run the risk of fuel cooking in the injector making a mess of the spray pattern. It should be telling you which injector is throwing the code and if it is one of the two that were worked on take it back.Hi all. I recently acquired a Toyota Granvia which has the 1KZTE 3.0 Diesel engine fitted. The Gravnia seems to be the love child of the Hilux engine with a Hiace type body. I bought this to turn into a camper while having Toyota reliability. Upon driving it last week the engine loss all power, all warning lights came on and it coasted to a stop.The suction control valve 04226-0L010 plays a critical role in the common rail diesel injection system, and is also one of the “usual suspects” in common rail diesel faults. For the average owner, looking to diagnose an issue with his vehicle, we are going to explain here the part the suction control valve 294009-1221 plays in fuel delivery ...In practice, many modern common rail injection systems will use both a pressure control valve on the rail and one of the forms of high pressure pump metering to control rail pressure. Figure 8 shows one example from an engine equipped with both a PCV and a FMV [2521]. At engine start and for preheating the fuel when temperatures are low, the ...Dirty Or Clogged Fuel Injectors. This causes any fuel left in the injector to evaporate, leaving behind hard deposits, inside the injector. Over time, these will eventually, block the injector. 2. Leaking Externally Or Internally. So, the most common cause of leaking injectors, is the failure of the O-ring.Here are all the Cummins ISX codes available for the Cummins ECM. These Cummins trouble codes pertain to ISX engines built with the EGR system, but pre-DPF (2002 - 2006). Cummins ISX Codes 111-500. 111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component. 115 Engine Magnetic Speed/Position Lost Both of Two ...Seaboard Marine delivers “Guaranteed Better Than Factory” Performance, Parts, Design, and Engineering for Cummins and other Marine Diesel applications. We’ve been serving local Ventura County, California since 1980 as a custom boat builder, repower specialist, designer, and supplier of equipment to builders, commercial fishermen, and ...a system that uses electro-hydraulic actuation of intake and exhaust valves instead of using a camshaft to operate valves. the valve technology that replaced the poppet valve used in the HEUI A and HEUI B designs; the digital nature of the valve refers to the position of the control valve-it is either open or closed.Fuel Pump with VIT. The sketch above shows the operating principle of the VIT in a fuel pump fitted to the Sulzer RTA engine. A plain cylinder plunger reciprocates inside the barrel. As the plunger moves up and down, two pivoted levers operate suction valve and spill valve push rods which open the suction and spill valves as shown. Injector spill valve meaning, Title says it all. It's been running fine with the exception of waking me up like clockwork after 8 hours of sleep feeling like it dropped a cylinder. Never threw a code till today after sitting in traffic for an hour. It usually comes right back to life after a restart. Am I replacing an injector?, solenoid spill valve. The solenoid spill valve is provided in the passage that connects the pump chamber with the pressure chamber of the plunger, and it remains closed when the coil is energized. (See page 28 for details on the solenoid spill valve.) Suction Stroke PR0064 Injection Stroke PR0065 2-2. System Components (on-vehicle layout ..., If the low pressure fuel system is degraded or the fuel pressure relief valve leakage is out of specification, this High-Pressure Fuel Pump Performance Test will not provide accurate results. ... Injector pass-through harness disconnected from engine wiring harness. 2.Route the hose, Part Number 3164673, into a graduated beaker, Part Number ..., Every 200k perform overhead, clean dpf, change def filter, clean egr valve, doser, flush egr cooler. Also change poost psi sensor. Paccar now recommends changing sensor everytime dpf filter baked. Do to soot and carbon plugging sensor. Also atmospheric psi sensor gets coated with soot will not compensate for changes in altitude properly., 1 Feb 1978 ... ... injector. When these waves exceed the injec. ... The pump spill ports and delivery valve were redesigned to eliminate secondary injection, in ..., The injection nozzle includes a needle type differential area injection valve that is normally biased to a valve closed position by a valve return spring which is positioned in a spring chamber and which is operatively connected to the opposite end of the injection valve. Passage means, including orifice passage are used to direct spill flow ..., 1243 Injector Cylinder 2, Nozzle Control Valve or Spill Control Valve, Jammed Closed 1243 Injector Cylinder 2, Nozzle Control Valve or Spill Control Valve, Jammed Open or Leakage 1243 Injector Cylinder #2 Needle Control Valve, Valve Shorted Circuit 1243 Engine Smoothness Control / Cylinder #2 Value Out of Range, Lucas pursued an approach that used two separate solenoids to control the spill valve and the NCV in a development that lead to the Delphi E3 injector [921]. However, Caterpillar intended to use a single solenoid to control both the injector spill valve and the NCV [2031][2032]. They referred to this injector as the MEUI-B., A Fuel Injector Will Usually Only Fail, In One Of Three Ways: 1. From Being Dirty Or Clogged. Consequently, over time the nozzle of the injector can become, dirty or clogged. So, when you shut off your engine, the injector will soak up heat from the engine. Dirty Or Clogged Fuel Injectors. This causes any fuel left in the injector to evaporate ..., A mechanically actuated electronically controlled fuel injector includes a first electrical actuator that controls the position of a spill value, and a second electrical actuator to control pressure on a closing hydraulic surface associated with a nozzle check valve. The fuel injector is actuated via rotation of a cam to move a plunger to ..., This type of pump injects and distributes the fuel into each cylinder with one rotation of the plunger. Features of the ECD-V3 include the control of the fuel injection volume by the Solenoid Spill Valve (SPV), and the control of the fuel injection timing by the Timing Control Valve (TCV). ELECTRONICALLY CONTROLLED DIESEL MODEL (ECD-V4), The location of the injector spill valve encompasses two parts: its base in the engine block and its enclosure within the crankcase cover. A 12-point star on a plastic cover reveals that this particular component houses the range switch for manual transmissions. The enclosure itself houses 4 compression springs which dictate force required to ..., Reading the manual I have, suggests that a resistance reading of 1.4 to 2ohms should be found across the spill valve at 20 degrees C. This would then equate to a current flow of approximately 1 amp through the valve which looking a the cable cross sectional area would appear to be a reasonable result., 21 Okt 2016 ... When pressure builds up to the delivery valve opening pressure, the valve will open and deliver high pressure fuel to the injector. When the ..., Injector spill vave Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by javelinjeff, Apr 1 ... 2013 KW T-660 with ISX15 400ST. Getting an Injector Spill Valve fault on dash display and yellow check engine light. Codes from my KR Scanguage are as follows,, ID 656 FM 7 CNT1. Cleared codes but still remains,no noticable change in ..., Introduction In unit injector (UI) and unit pump (UP) systems, each engine cylinder is served by a separate injection pumping element or injection pump in close proximity to the cylinder. Unit pump (UP) systems enable short high pressure fuel lines by locating the pump close to the injector., The air-assisted injector used in this experiment was a commercial injector for a two-stroke marine engine with over 22 kW (30 ps) per cylinder, as shown in Figure 13.21.Fuel is first injected into a cavity and the air injector is operated by opening a poppet valve. The air-fuel ratio can be controlled by changing the opening period of the valve when the pressure …, Injectors. The injector is a device to deliver fuel intermittently into the engine cylinder at times that are synchronized with the engine camshaft position. The injector needle in an injector acts as a valve to open or close the passage to the injector hole (s). , Oct 23, 2023 · 11-15-2018, (Subject: Injector Spill Valve ) Post: #3. indian_richard. Established (4 Likes) Posts: 49. Joined: Nov 2015. RE: Injector Spill Valve. (11-15-2018 )Unilevers Wrote: the spill valve on a common rail injector is internal to it.. Hook up insite and see what number its throwing the code for and change that injector. , injector spill valve is part of the injector. it should specify which injector it is. u can replace the injector and clean up around it real good or just clean out the injector real good if ur an owner operator. pacetech, Jun 11, 2014., This creates a air/fuel ratio ranging from 12.5:1 (performance) to 15.5:1 (economy). Here it is in slightly more practical terms: * A high airflow/high vacuum signal raises the linkage, but lowers ..., called Variable Injection Timing and Fuel Quality Setting (VIT and FQS) system on its low speed two stroke engines. The VIT and FQS system performs two main tasks. The VIT part is an automatic function that controls the injection begin depending on the actual engine load and cares for optimum part load fuel consumption., An internal combustion engine’s cylinder head performs several functions including housing the exhaust and intake valves, the fuel injector and necessary linkages, and passages for the fuel and air mixture., The suction control valve 04226-0L010 plays a critical role in the common rail diesel injection system, and is also one of the “usual suspects” in common rail diesel faults. For the average owner, looking to diagnose an issue with his vehicle, we are going to explain here the part the suction control valve 294009-1221 plays in fuel delivery ..., Mobile Equipment Mechani... BS - Construction Manage... 86 satisfied customers. I just had a injector spill valve check engine light come on. I just had a injector spill valve check engine light come on .I have a 2014 perterbuilt ixs 15 Cummings engine. … read more., The fuel injector is an electromagnetic valve that when driven by the ECU delivers a metered quantity of fuel into the intake manifold (or combustion chamber in the GDI system). The ECU controls the fuel flow by pulse width modulation. The time the injector is driven into an open condition is determined by the following sensor inputs: Engine RPM, AModelCat Road Train Member. Sounds like the SDP uses electronic unit injectors. With electronic unit injectors, the spill valve controls your injection. The cam is always cycling the injector but the fuel just passes through it until …, If the low pressure fuel system is degraded or the fuel pressure relief valve leakage is out of specification, this High-Pressure Fuel Pump Performance Test will not provide accurate results. ... Injector pass-through harness disconnected from engine wiring harness. 2.Route the hose, Part Number 3164673, into a graduated beaker, Part Number ..., Every 200k perform overhead, clean dpf, change def filter, clean egr valve, doser, flush egr cooler. Also change poost psi sensor. Paccar now recommends changing sensor everytime dpf filter baked. Do to soot and carbon plugging sensor. Also atmospheric psi sensor gets coated with soot will not compensate for changes in altitude properly., Oct 29, 2018 · Country Flag. Oct 29, 2018. #5. To add, putting a clear piece of fuel hose between the fuel filter and the pump will show any bubbles in the fuel. Running from a can of diesel into the fuel filter will eliminate tank and fuel pipe issues. There was a member on here that had a blockage in the return line. , Feb 5, 2020 · Fuel injector: A remanufactured ISX fuel injector has new parts ranging from the spill valve, shim and NOP spring to screws and the actuator assembly. Cummins injectors also include new external O-rings and filters. Inframe engine rebuild kit with re-ring and fewer pistons: The ISX15 has an inframe rebuild option for when your pistons are in ... , Water injection valve module Metering valve Water to headers Water flow to engine Reducing valve Think about how The Water Injection Valve is to be plumbed. First, the cooling water for the injection valve should be brought straight from the source. You will need fittings to tap into the cooling water line at this point, before the reducing valve., Working on a 20 13 paccar mx 10. I have an injector spill valve code. I feel the pulse in all injector lines except #6. I have replaced the unit pump and still have the code and miss. I don't have a laptop to hook to it so I'm basically throwing parts at it and injectors are expensive.