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Code 51 open injector circuit - 300ZX Nissan Cars & Trucks

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6ya6ya
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Posted on Jan 02, 2017

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shaggyrat
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SOURCE: code p202 fuel injector # 2 open circuit

need to replace fuel injectors

Posted on Jun 10, 2008

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SOURCE: error code 51 (injector circuit) on 1994 nissan se v6 pickup

I would start by checking the resistance of all of the injectors. I saw this happen last week, I had a new injector that was reading low ohms and it was making two cylinders misfire. Replace the new one with a another new one and both cylinder ran good. I dont know what the ohm value of your injectors should be but I would want at least 10 ohms, All of them will be about the same except the bad one..I did a web search on your problem and it was covered at several places.

Posted on Oct 02, 2008

  • 9 Answers

SOURCE: Cylinder #1 is misfiring. Code indicates open

SUSPECT ECU FAULT

Posted on Mar 13, 2009

glamarre82
  • 140 Answers

SOURCE: 1993 Maxima, low idle skip, on 4th cylinder, code

Well the answer is right there. Its not the injector itself. Its the circuit leading into the injector that is not working. What that means is the computer cant tell the injector when to spray the right amount of fuel because the signal is not getting to the injector due to the circuit not working. Have a mechanic check that with a probe to verify

Posted on Jun 20, 2009

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92 grand caravan 3.3L starts up and stalls possible causes would be?


code 27...injector control circuit malfunction ! The wiring is open or the computer is bad . There are videos on youtube checking injector control circuits and the driver inside the PCM/ECM -engine computer . How to test fuel injector circuit with basic tools open control wire

Jan 27, 2017 | Cars & Trucks

1 Answer

What do i check too fix injector circuit 4 on cavalier 99


OBD-II Trouble Code: P0201 Cylinder 1 Injector Circuit ...

www.obd-codes.com/p0201
The symptoms for this code will likely be a misfire and a rough running ... First, using a DVOM check the resistance of the injector. ... This is for a 2003 Saab 9-3 with fault code P0201 (Cylinder 1 Injector Circuit ... If you still need help regarding the P0201 trouble code, please post your question in our FREE car repair forums.

Stuck Open Fuel Injector (how to fix) - YouTube

? 8:25
https://www.youtube.com/watch?v=jsl531-6q-A
Sep 13, 2011 - Uploaded by ScannerDanner
2001 Dodge Grand Caravan 3.3 with a #5 injector control wire shorted to ground. ... (Injector control voltage ...

2002 Chrysler 3.8 Liter Injector Code Fix p0204 - YouTube

? 4:13
https://www.youtube.com/watch?v=GX3kQloqIBw
Mar 31, 2013 - Uploaded by Mickey Smith
(P0204 Injector Circuit - Open Cylinder) This will show you what i found wrong. Your number 4 injector ...Missing: cavalier

1999 Chevy Cavalier Error code PO200 and PO200P (pending ...

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Jan 25, 2016 | Cars & Trucks

1 Answer

I have a 1991 Dakota it has two trouble codes on is#12 memory standby power lost the other is # 27 injector output circuit not responding what does this mean and to fix it


Code 12 is more or less common, code 27 is a problem with the injector or the circuit.
You may need to research the code 27 to get the testing procedure and the wiring diagram. Usually the reason for the code is too much resistance in the circuit or an open circuit. The computer grounds the injector to make it open.

Aug 10, 2013 | Dodge Cars & Trucks

1 Answer

How do ya fix codes p0320&p0340


Ford Crown Victoria, Mercury Grand Marquis, Marauder, Lincoln Town Car 1999-2005
4.6L V8 - Auto 2

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Trouble Code: P0201

Cylinder 1 Injector Circuit Malfunction

Possible Causes:


Injector 1 connector is damaged, open or shortedInjector 1 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0202

Cylinder 2 Injector Circuit Malfunction

Possible Causes:


Injector 2 connector is damaged, open or shortedInjector 2 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0203

Cylinder 3 Injector Circuit Malfunction

Possible Causes:


Injector 3 connector is damaged, open or shortedInjector 3 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0204

Cylinder 4 Injector Circuit Malfunction

Possible Causes:


Injector 4 connector is damaged, open or shortedInjector 4 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0205

Cylinder 5 Injector Circuit Malfunction

Possible Causes:


Injector 5 connector is damaged, open or shortedInjector 5 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0206

Cylinder 6 Injector Circuit Malfunction

Possible Causes:


Injector 6 connector is damaged, open or shortedInjector 6 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0207

Cylinder 7 Injector Circuit Malfunction

Possible Causes:


Injector 7 connector is damaged, open or shortedInjector 7 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0208

Cylinder 8 Injector Circuit Malfunction

Possible Causes:


Injector 8 connector is damaged, open or shortedInjector 8 control circuit is open, shorted to ground or to powerPCM has failed (the injector driver circuit may be damaged)


Trouble Code: P0219

Engine Over-Speed Condition

Possible Causes:


Engine operated in the wrong transmission gear positionExcessive engine speed with gear selector in Neutral positionWheel slippage due to wet, muddy or snowing conditions


Trouble Code: P0230

Fuel Pump Primary Circuit Malfunction

Possible Causes:


FP or FSV circuit is open or shortedFuel pump relay VPWR circuit openFuel pump relay is damaged or has failedPCM has failed


Trouble Code: P0231

Fuel Pump Primary Circuit Low Input

Possible Causes:


FP or FSV circuit is open or shorted to groundFuel pump relay VPWR circuit open or fuel pump relay failedPCM has failed


Trouble Code: P0232

Fuel Pump Secondary Circuit High Input

Possible Causes:


Fuel pump relay contacts always closedFuel pump ground circuit has high resistanceFuel pump secondary circuit is shorted to powerLow speed fuel pump relay damaged or related circuit problem


Trouble Code: P0297

Vehicle Over-Speed Condition

Possible Causes:


The code indicates the vehicle was driven at very high engine speed (rpm) for too long. The PCM temporarily prohibits high engine speed by disabling the fuel injectors with this code set.


Trouble Code: P0300

Random Misfire Detected

Possible Causes:


Base engine mechanical fault that affects two or more cylindersFuel metering fault that affects two or more cylindersFuel pressure too low or too high, fuel supply contaminatedEVAP system problem or the EVAP canister is fuel saturatedEGR valve is stuck open or the PCV system has a vacuum leakIgnition system fault (coil, plug) affecting two or more cylindersMAF sensor contamination (it can cause a very lean condition)Vehicle driven while very low on fuel (less than 1/8 of a tank)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0301

Cylinder Number 1 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 1Fuel delivery component problem that affects only Cylinder 1 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 1TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0302

Cylinder Number 2 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 2Fuel delivery component problem that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 2TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0303

Cylinder Number 3 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 3Fuel delivery component problem that affects only Cylinder 3 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 3TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0304

Cylinder Number 4 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 4Fuel delivery component problem that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 4TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0305

Cylinder Number 5 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 5Fuel delivery component problem that affects only Cylinder 5 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 5TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0306

Cylinder Number 6 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 6Fuel delivery component problem that affects only Cylinder 6 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 6TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0307

Cylinder Number 7 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 7Fuel delivery component problem that affects only Cylinder 7 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 7TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0308

Cylinder Number 8 Misfire Detected

Possible Causes:


Air leak in the intake manifold, or in the EGR or PCM systemBase engine mechanical problem that affects only Cylinder 8Fuel delivery component problem that affects only Cylinder 8 (i.e., a contaminated, dirty or sticking fuel injector)Ignition system problem (coil, plug) that affects only Cylinder 8TSB 02-16-2 contains repair help for this code (LS & T-Bird)TSB 03-14-4 contains repair help for this code for COP ignition


Trouble Code: P0315

Unable to Learn Crankshaft Variation

Possible Causes:


Inspect the CKP sensor for damageInspect the CKP sensor for debris on the rotorInspect the crankshaft pulse wheel for damaged teethInspect the crankshaft pulse wheel for wobble (loose condition)


Trouble Code: P0316

Misfire in the First 1000 Revolutions

Possible Causes:


Check for CMC DTC P0136, P0156, P0171, P0172, P0175, P1130 and P1150. Repair these adaptive fuel and HO2S codesCheck for any other CMC in memory. Repair these codes first!Ignore P1000 codes that set during KOEO and KOER Self-Test


Trouble Code: P0320

Ignition Engine Speed Input Circuit Malfunction

Possible Causes:


Inspect for problems with an Aftermarket 2-way radioInspect for signs of "arcing" at one or more of the ignition coilsInspect the Profile Ignition Pickup (PIP) unit inside distributor (check for damage or corrosion at the PIP sensor connector)PIP sensor is damaged or it has failed (distributor models)Ignition control module (ICM) has failed (Distributorless models)Trouble Code: P0340

Camshaft Position Sensor Circuit Malfunction

Possible Causes:


CMP sensor circuit is open or shorted to groundCMP sensor circuit is shorted to powerCMP sensor ground (return) circuit is openCMP sensor installation incorrect (Hall-effect type)CMP sensor is damaged or CMP sensor shielding damagedPCM has failedTSB 02-22-1 contains repair information for this trouble code

Nov 16, 2012 | Ford Cars & Trucks

1 Answer

Need trouble code list


Older Model Computer Codes (OBDI) - IMPORTANT! Codes may be different for newer vehicles starting circa 1996.
11 No ignition reference signal detected during cranking OR timing belt skipped one or more teeth; OR loss of either camshaft or crankshaft position sensor.
12 Battery or computer recently disconnected
13 MAP sensor or vacuum line may not be working
14 MAP sensor voltage below .16V or over 4.96V
15 No speed/distance sensor signal
16 Loss of battery voltage detected with engine running
17 Engine stays cool too long (bad thermostat or coolant sensor?)
OR
17 (1985 turbo only): knock sensor circuit
21 Oxygen sensor signal doesn't change (stays at 4.3-4.5V). Probably bad oxygen sensor
22 Coolant sensor signal out of range - May have been disconnected to set timing
23 Incoming air temperature sensor may be bad
24 Throttle position sensor over 4.96V
25 Automatic Idle Speed (AIS) motor driver circuit shorted or target idle not reached
26 Peak injector circuit voltage has not been reached (need to check computer signals, voltage reg, injectors)
27 Injector circuit isn't switching when it's told to (TBI)
OR (MPI) injector circuit #1 not switching right
OR (turbo) injector circuit #2 not switching right
OR (all 1990-) injector output driver not responding
- check computer, connections
31 Bad evaporator purge solenoid circuit or driver
32 (1984 only) power loss/limited lamp or circuit
OR
32 EGR gases not working (1988) - check vacuum, valve
OR
32 (1990-92) computer didn't see change in air/'fuel ratio when EGR activated - check valve, vacuum lines, and EGR electrical
33 Air conditioning clutch relay circuit open or shorted (may be in the wide-open-throttle cutoff circuit or normal on early 80's models if you don't have air conditioning)
34 (1984-86) EGR solenoid circuit shorted or open
OR
34 (1987-1991) speed control shorted or open
35 Cooling fan relay circuit open or shorted
OR
35 idle switch motor fault - check connections
36 (turbo only) Wastegate control circuit open or shorted
37 Shift indicator light failure, 5-speed
OR
part throttle lock/unlock solenoid driver circuit (87-89)
OR
solenoid coil circuit (85-87 Turbo only)
OR
Trans temperature sensor voltage low (1995 and on)
41 Alternator field control circuit open or shorted
42 Automatic shutdown relay circuit open or shorted
OR
42 Fuel pump relay control circuit
OR
42 Fuel level unit - no change over miles
OR
42 Z1 voltage missing when autoshutdown circuit energized (The Z1 voltage is the voltage of the circuits fed by the autoshutdown relay. This typically includes fuel pump and switched-battery feed to the ignition coil)
43 Peak primary coil current not achieved with max dwell time
OR
43 Cylinder misfire
OR
43 Problem in power module to logic module interface
44 No FJ2 voltage present at logic board
OR
44 Logic module self-diagnostics indicate problem
OR
44 Battery temperature out of range
45 Turbo boost limit exceeded (engine was shut down by logic module)
46 Battery voltage too high during charging or charging system voltage too low
47 Battery voltage too low and alternator output too low
51 Oxygen sensor stuck at lean position (this may be tripped by a bad MAP sensor system causing a rich condition. If you get hot rough idle and stalling, especially on deceleration, accompanied by flooded engine and difficulty restarting, that can be a bad MAP sensor causing the O2 sensor to try to compensate. If you get poor cold driveability, stumbling and bucking, and acceptable warm driving with poor gas mileage (a drop of 10 mpg or more), that is usually the O2 sensor.
OR
51 Internal logic module fault ('84 turbo only).
52 Oxygen sensor stuck at rich position
OR
52 Internal logic module fault ('84 turbo only)
53 Logic module internal problem
54 No sync pickup signal during engine rotation (turbo only)
OR
54 Internal logic module fault ('84 turbo only) - or camshaft sensor/distributor timing
55 End of codes
61 "Baro" sensor open or shorted
62 EMR mileage cannot be stored in EEPROM
62 PCM failure SRI mile not stored
63 Controller cannot write to EEPROM
64 Catalytic converter efficiency failure
65 Power steering switch failure
66 No CCD Message From TCM and/or No CCD Message From BCM

Oct 06, 2012 | 1995 Jeep Grand Cherokee

1 Answer

94 ford probe error code 51 flashing


The code 51 is for the Injector circuit. There is either a bad injector or a harness issue.

I would start by having all injectors checked. If any are found bad, they will need to be replaced.

Hope this helps.

Apr 17, 2012 | 1994 Ford Probe

2 Answers

2002 ford f450 7.3 diesel runs ruff and has trouble code p1316 any ideas


P1316 Injector Circuit/IDM Codes Detected .....FJ9 DIAGNOSTIC TROUBLE CODE (DTC) P1316 INDICATES THAT CODES ARE STORED IN THE IDM
Possible causes:
Injector(s) or circuit(s)
Open or shorted IDM enable circuit
Open/short in EF circuit
Open/short in FDCS circuit
IDM relay
IDM powering circuits
IDM
PCM
Check for other codes.
Key on, engine off.
Perform KOEO On-Demand Self Test.

This tells me that the IDM DOES store codes.
Trying to make sense of this. Which test will then give me the codes stored in the IDM? I am pretty sure we did the self test and did not get additional codes

Jan 09, 2010 | 2002 Ford Super Duty F 450

2 Answers

What is airbag light code 31 and 51 on a 1994 ford taurus


I was unable to locate code 31 in my book here is a copy of the codes. looks like you just need a fuse for #51. this may fix 31 as well.

Diagnostic Trouble Code Table 1994

AIR BAG DIAGNOSTIC MONITOR DIAGNOSTIC TROUBLE CODE PRIORITY TABLE
Priority Code Component/Fault Description
Highest - No Air Bag Indicator - Inoperative Lamp Circuit or No Ignition
Voltage to Air Bag Diagnostic Monitor

Continuous Air Bag Indicator - Air Bag Diagnostic Monitor
Disconnected or Inoperative
12 Low Battery Voltage
13 Air Bag Circuit Shorted to Ground
14 Primary Crash Sensor Circuit Shorted to Ground
21 Safing Sensor Not Mounted to Vehicle Properly
22 Safing Sensor Output Shorted to Battery Voltage
23 Safing Sensor Circuit Input Feed/Return Circuit Open
24 Safing Sensor Output Feed/Return Circuit Open
32 Driver Side Air Bag Module High Resistance or Open
33 Passenger Side Air Bag Module High Resistance or Open
34 Driver Side Air Bag Module Circuit Low Resistance or Shorted
35 Passenger Side Air Bag Module Low Resistance or Shorted
42 Center Radiator Primary Crash Sensor Feed/Return Open
44 Center Cowl Primary Crash Sensor Not Mounted to Vehicle Properly
45 Center Radiator Primary Crash Sensor Not Mounted to Vehicle Properly
51 Diagnostic Monitor Internal Thermal Fuse - Fuse Blown Due to
Intermittent Short to Ground
52 Backup Power Supply - Voltage Boost Fault
53 Primary Crash Sensor Circuits - Resistance to Ground or Air Bag
Diagnostic Monitor Failure

Lowest - Rapid Continuous Flashing of Air Bag Indicator (No DTC) All Primary

Sep 30, 2009 | 1994 Ford Taurus

1 Answer

1993 Maxima, low idle skip, on 4th cylinder, code on computer comes back fuel injector signal circuit fault, code 51. Does anyone know what can fix it? Also, injector checks out good, plug works good,...


Well the answer is right there. Its not the injector itself. Its the circuit leading into the injector that is not working. What that means is the computer cant tell the injector when to spray the right amount of fuel because the signal is not getting to the injector due to the circuit not working. Have a mechanic check that with a probe to verify

Jun 19, 2009 | 1993 Nissan Maxima

2 Answers

Error code 51 (injector circuit) on 1994 nissan se v6 pickup


I would start by checking the resistance of all of the injectors. I saw this happen last week, I had a new injector that was reading low ohms and it was making two cylinders misfire. Replace the new one with a another new one and both cylinder ran good. I dont know what the ohm value of your injectors should be but I would want at least 10 ohms, All of them will be about the same except the bad one..I did a web search on your problem and it was covered at several places.

Oct 02, 2008 | 1994 Nissan Pickup

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