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What does an open injector circut cyl 4 mean - 1999 Cadillac DeVille

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It means you have a circuit to cyl4 that is not complete, maybe a loose connector or broken wire perhaps.

Posted on Jun 16, 2009

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Where should I look to resolve a P0204 error code on a 2004 VW Beetle?


Fuel in the injector harness can result in a short causing this code. The only way for fuel to be there is a leaky injector. Dry off harness and monitor. Even though the injector is new, it may be defective. The next place to look is the wiring harness itself. You will have to find where the wiring for #4 injector goes into the vehicles computer and perform a resistance test from the injector harness to the computer to make sure there is no high resistance/opens. If all checks out fine, the computer may be bad. VW computer failure rates are extremely low. I would concentrate on a wiring issue.

Aug 22, 2015 | Cars & Trucks

1 Answer

03 mitsubishi eclipse 2.4 4 cyl miss fire on 2 and 4 cyl going by the firing order they are not getting fuel the car was running fine shut it off went back 2 hours later and that's when it started...


If you know for a fact the injectors are not opening, you would need to check for voltage and a ground signal from the computer. The computer grounds the injectors to open them based on the crank and cam sensors.

Jan 03, 2013 | Cars & Trucks

1 Answer

I have a 30ltr TDI quattro that smokes when it idles for than a few minutes


This car doesn't have coils and wires, it's gasoil. The most likely reason is the piezo injectors are worn. The best way to test is with VCDS
After an overnight stationary period drive the vehicle with cold engine between 1200 - 1600 rpm till the complaint occurs. Constantly read the measured value block 13 and 14 for the smooth running control in the engine control unit. The values of one or several cylinders should noticeably move to positive.

modified injectors A8: with 3.0l, 4.2l TDI from: WAUZZZ4E*7N016685
Replace the injector with the highest deviation and all injectors produced between 1.3.2006 and 30.4.2006.
Example of production date: 060304 stands for 4.3.2006
vcds go to address 01 measured values below
013 Smooth running control1)Cyl. 1 Injection quantity variation[mg/stroke]2)Cyl. 2 Injection quantity variation[mg/stroke]3)Cyl. 3 Injection quantity variation[mg/stroke]4) VacantPermissible values at idle: +- 2,99 mg/strokeA If the permissible tolerance is exceededfirst check injector IQA-IVA adaption values
014 Smooth running control1)Cyl. 4 Injection quantity variation[mg/stroke]2)Cyl. 5 Injection quantity variation[mg/stroke]3)Cyl. 6 Injection quantity variation[mg/stroke]4) VacantPermissible values at idle: +- 2,99 mg/strokeA If the permissible tolerance is exceededfirst check injector IQA-IVA adaption values

Jun 28, 2012 | 2006 Audi A6 3.0

2 Answers

04 intrepid p0202 injector open circute check all options do I need new pcm


You say power,the power is not from the PCM,only the signal is form the PCM,The power is from the pwer distribution box,the left side of engine comportment

Mar 23, 2012 | 2004 Dodge Intrepid

1 Answer

I have an 04 Kia spectra with a PO121 code. What domestic this mean


Well.... Here is a full list of the codes I can find that Kia list. Oddly it jumps from P0120 to P0122

I hope the attached will help, but you may need to talk to your dealer.


Diagnostic Codes
Kia
Without Onboard Diagnostics (OBD-II)
2 Distributor no Signal.
3 Distributor G Signal.
7 Fault on SGT Signal.
8 Mass Air Flow Sensor.
9 Engine Coolant Temperature Sensor.
10 Intake Air Temperature Sensor.
12 Throttle Position Sensor.
14 Atmospheric Pressure Sensor.
15 Oxygen Sensor.
16 EGR Valve Position Sensor.
17 Feedback System.
18 Injector No. 1 open or short.
19 Injector No. 2 open or short.
20 Injector No. 3 open or short.
21 Injector No. 4 open or short.
24 Fuel Pump Relay open or short.
25 Pressure Regulator Control Solenoid Valve.
26 Purge Control Solenoid Valve.
28 Solenoid Valve (EGR) open or short.
34 Idle Speed Control Solenoid Valve.
35 Deteriorated Injector.
36 Deteriorated Air Flow Sensor.
37 Intake System Air Leakage.
41 Variable Inertia Charging System Solenoid Valve.
46 A/C Cut Relay open or short.
48 Power Stage Group 1 Malfunction (inside ECM). Injector 1-4 Purge Solenoid Valve, EGR Solenoid Valve or Damaged Power Stage.
49 Power Stage Group 2 Malfunction (inside ECM). Idle Speed Control Valve Failure or Damaged Power Stage.
56 Idle Speed Control Valve Closing Coil open or short.
57 A/C Compressor Input Signal short.
73 Vehicle Speed Sensor open or short.
87 Malfunction Indicator Lamp short Circuit.
88 ECM Data.
99 Battery.





OBD-II

P0100 Mass Air Flow or Volume Air Flow Circuit Malfunction.
P0101 Mass Air Flow or Volume Air Flow Circuit Range/Performance problem.
P0102 Mass Air Flow or Volume Air Flow Circuit Low Input.
P0103 Mass Air Flow or Volume Air Flow Circuit High Input.
P0107 MAP/BARO Circuit Low Input.
P0108 MAP/BARO Circuit High Input.
P0110 A/T Circuit Malfunction.
P0115 Engine Coolant Temperature Circuit Malfunction.
P0116 Engine Coolant Temperature Circuit Range/Performance Condition.
P0117 Engine Coolant Temperature Circuit Low Input.
P0118 Engine Coolant Temperature Circuit High Input.
P0120 Throttle Position Malfunction - Circuit A.
P0122 APP/TPP Sensor Switch Low Input - Circuit A.
P0123 APP/TPP Sensor Switch High Input - Circuit A.
P0125 Insufficient Coolant Temperature for Closed Loop Fuel Control.
P0130 Oxygen Sensor Circuit Malfunction - Bank 1 Sensor 1.
P0131 Oxygen Sensor Circuit Low Voltage - Bank 1 Sensor 1.
P0132 Oxygen Sensor Circuit High Voltage - Bank 1 Sensor 1.
P0133 Oxygen Sensor Circuit Slow Response - Bank 1 Sensor 1.
P0134 Oxygen Sensor Circuit No Activity detected - Bank 1 Sensor 1.
P0135 Oxygen Sensor Heater Circuit Malfunction - Bank 1 Sensor 1.
P0136 Oxygen Sensor Circuit Malfunction - Bank 1 Sensor 2.
P0137 Oxygen Sensor Circuit Low Voltage - Bank 1 Sensor 2.
P0138 Oxygen Sensor Circuit High Voltage - Bank 1 Sensor 2.
P0139 Oxygen Sensor Circuit Slow Response - Bank 1 Sensor 2.
P0140 Oxygen Sensor Circuit No Activity detected - Bank 1 Sensor 2.
P0141 Oxygen Sensor Heater Circuit Malfunction - Bank 1 Sensor 2.
P0170 Fuel Trim Malfunction - Bank 1.
P0171 System too Lean - Bank 1.
P0172 System too Rich - Bank 1.
P0261 Injector Circuit Low - Cyl. 1.
P0262 Injector Circuit High - Cyl. 1.
P0264 Injector Circuit Low - Cyl. 2.
P0265 Injector Circuit High - Cyl. 2.
P0267 Injector Circuit Low - Cyl. 3.
P0268 Injector Circuit High - Cyl. 3.
P0270 Injector Circuit Low - Cyl. 4.
P0271 Injector Circuit High - Cyl. 4.
P0300 Multiple/Random Misfire detected.
P0301 Misfire detected - Cyls. 1-4.
P0302 Misfire detected - Cyls. 1-4.
P0303 Misfire detected - Cyls. 1-4.
P0304 Misfire detected - Cyls. 1-4.
P0325 Knock Sensor Circuit Malfunction
P0326 Knock Sensor 1 Circuit Range/Performance - Bank 1 or Single Sensor.
P0335 Crankshaft Position Sensor Malfunction - Circuit A.
P0336 Crankshaft Position Sensor Range/Performance - Circuit A.
P0340 Crankshaft Position Sensor Circuit Malfunction.
P0342 Crankshaft Position Sensor Circuit Low Input.
P0343 Crankshaft Position Sensor Circuit High Input.
P0400 EGR Flow Malfunction.
P0403 EGR Circuit Malfunction.
P0404 EGR Circuit Range/Performance Malfunction.
P0420 Catalyst System Efficiency below Threshold - Bank 1.
P0422 Main Catalyst Efficiency below Threshold - Bank 1.
P0440 Evaporative Control Malfunction.
P0441 Evaporative Control System - Improper Purge.
P0442 Evaporative Control System - Small Leak detected.
P0443 Evaporative Control System Purge Control Valve Circuit Malfunction.
P0446 Evaporative Vent Control Circuit Malfunction.
P0447 Evaporative Vent Control Circuit Open.
P0448 Evaporative Vent Control Circuit Short.
P0450 Evaporative System Pressure Sensor Circuit Malfunction.
P0452 Evaporative Control System Pressure Sensor Low Input.
P0453 Evaporative Control System Pressure Sensor High Input.
P0455 Evaporative Control System - Large Leak detected.
P0470 Exhaust Pressure Sensor Malfunction.
P0500 Vehicle Speed Sensor Malfunction.
P0501 Vehicle Speed Sensor Range/Performance.
P0505 Idle Air Control System Malfunction.
P0506 Idle Air Control System Malfunction - RPM Lower than expected.
P0507 Idle Air Control System Malfunction - RPM Higher than expected.
P0510 CTP Switch Malfunction.
P0561 System Voltage Unstable.
P0562 System Voltage Low.
P0563 System Voltage High.
P0601 Internal Control Module Memory Checksum Error.
P0604 Internal Control Module RAM Error.
P0703 Torque Converter/Brake Pedal Switch Malfunction - Circuit B.
P0705 Transaxle Range Sensor Circuit Malfunction (PRNDL Input).
P0706 A/T Range Sensor Circuit Range/ Performance.
P0710 Transaxle Fluid Temperature Sensor Circuit Malfunction.
P0711 A/T Fluid Temperature Sensor Circuit Range/Performance.
P0715 Input/Turbine Speed Sensor Circuit Malfunction.
P0722 Output Speed Sensor Circuit No Signal.
P0726 Engine Speed Input Circuit Range/ Performance.
P0727 Engine Speed Input Circuit - No Signal.
P0731 A/T Gear 1 Improper Ratio.
P0732 A/T Gear 2 Improper Ratio.
P0733 A/T Gear 3 Improper Ratio.
P0734 A/T Gear 4 Improper Ratio.
P0740 Torque Converter Clutch System Malfunction.
P0743 Torque Converter Clutch Circuit Electrical.
P0750 Shift Solenoid "A" Malfunction.
P0753 Shift Solenoid "A" Electrical.
P0755 Shift Solenoid "B" Malfunction.
P0758 Shift Solenoid "B" Electrical.
P0760 Shift Solenoid "C" Malfunction.
P1000 Readiness Function Code.
P1115 Engine Coolant Temperature Signal from ECM to TCM.
P1121 Throttle Position Sensor Signal Malfunction from ECM to TCM.
P1170 Front Heated Oxygen Sensor Stuck.
P1195 EGR Pressure Sensor (1.6L) or Boost Sensor (1.8L) Open or Short.
P1196 Ignition Switch "Start" Open or Short (1.6L).
P1250 Pressure Regulator Control Solenoid Valve Open or Short.
P1252 Pressure Regulator Control Solenoid Valve No. 2 Circuit Malfunction.
P1307 Chassis Acceleration Sensor Signal Malfunction.
P1308 Chassis Acceleration Sensor Signal Low.
P1309 Chassis Acceleration Sensor Signal High.
P1345 No SGC Signal (1.6L).
P1386 Knock Sensor Control Zero Test.
P1402 EGR Valve Position Sensor Open or Short.
P1449 Canister Drain Cut Valve Open or Short (1.8L).
P1450 Excessive Vacuum Leak.
P1455 Fuel Tank Sending Unit Open or Short (1.8L).
P1457 Purge Solenoid Valve Low System Malfunction.
P1458 A/C Compressor Control Signal Malfunction.
P1485 EGR Solenoid Valve Vacuum Open or Short.
P1486 EGR Solenoid Valve Vent Open or Short.
P1487 EGR Boost Sensor Solenoid Valve Open or Short.
P1496 EGR Stepper Motor Malfunction - Circuit 1 (1.8L).
P1497 EGR Stepper Motor Malfunction - Circuit 2 (1.8L).
P1498 EGR Stepper Motor Malfunction - Circuit 3 (1.8L).
P1499 EGR Stepper Motor Malfunction - Circuit 4 (1.8L).
P1500 No Vehicle Speed Signal to TCM.
P1505 Idle Air Control Valve Opening Coil Voltage Low.
P1506 Idle Air Control Valve Opening Coil Voltage High.
P1507 Idle Air Control Valve Closing Coil Voltage Low.
P1508 Idle Air Control Valve Closing Coil Voltage High.
P1523 VICS Solenoid Valve.
P1586 A/T-M/T Codification.
P1608 PCM Malfunction.
P1611 MIL Request Circuit Voltage Low.
P1614 MIL Request Circuit Voltage High.
P1624 MIL Request Signal from TCM to ECM.
P1631 Alternator "T" Open or No Power Output (1.8L).
P1632 Battery Voltage Detection Circuit for Alternator Regulator (1.8L).
P1633 Battery Overcharge.
P1634 Alternator "B" Open (1.8L).
P1693 MIL Circuit Malfunction.
P1743 Torque Converter Clutch Solenoid Valve Open or Short.
P1794 Battery or Circuit Failure.
P1795 4WD Switch Signal Malfunction.
P1797 P or N Range Signal or Clutch Pedal Position Switch Open or Short.

Jun 21, 2011 | 2004 Kia Spectra

1 Answer

99 s-10 4cyl bad miss no power obd2 says open circut injector but not witch one .How do i find out?


HI. One way to check which injector has the open circuit is to use an ohm meter.
With engine off disconnect each injector at a time and put the test leads of the ohm meter on the terminals of the injector, take a reading. The 4 readings should be approx. the same.
The injector at fault will show no reading ( open circuit)
So good luck with this test
Ps if you don`t have an ohm meter they are cheap to buy. you don`t need a profesional one
john

Mar 10, 2011 | 1999 Chevrolet S-10 Pickup

1 Answer

Engine starts on 3 cyl when cold loading up engine cyl after warm engine will fire all 4 cyl what is the issue


Find out which cylinder is not firing. Before it starts firing pull the plug and see if it is wet. If it is I would say that the injector was stuck open.

Feb 06, 2011 | 1988 Chevrolet Nova

1 Answer

172 EGO not switching lean exhaust bank 1


p0172 means bank 1 of your engine is rich. Need more info on vehicle make model year ect. Could be a sticking fuel injector or on a single bank engine (4 cyl or inline 6 cyl) too much fuel pressure or mass airflow malf.

Sep 18, 2010 | Ford F-250 Cars & Trucks

1 Answer

P0303 and P1300 together (Cyl. 3 Misfire)


CODE P1300 IS MISFIRE DETECTED FUEL PROBLEM. WHICH MEAN 3 FUEL INJECTOR IS CLOGGED UP.HAVE FUEL INJECTORS CLEAN AND CHANGE FUEL FILTER.

Jul 24, 2010 | 1999 Audi A4

3 Answers

99 dodge caravan #4 cylinder misfires, i replaced spark plug wires and spark plugs. Scanner showed #4 still misfiring, could this be the coil?


It could very well be a bad coil pack,or you have low compression in that cylinder.If the compression is good then go with the coil pack,if not you may need a head gasket or an intake manifold gasket.

Nov 07, 2009 | 1999 Dodge Grand Caravan

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