"circuit open" means that the entire circuit, from the computer to the injector isn't making good connection. You will need to trace the wire all the way and find the break in the wire.
SOURCE: 99 buick Lesabre
hey thanks for bringing me up to speed. ive been working on many other problems but with your great explanation i remember.
we need to check the compression on that cyl. and compare it to the compression on 2 other cylinders your choice.
but before you do this get a can of carb cleaner . and with the car idling spray around the intake manifold in the area of #6 cyl. what we are looking for is a small vacuum leak that would also act like this. with the engine idling and spraying around the intake the engines idle sould not change and if it does when you spray you have an intake leaking.
let me know how it turns out.
later
paul
SOURCE: check engine light for 04 express 2500 van
Yes that is correct.There is also a coil that fires the spark plug for each cylinder.There are specific tests for each component so you can find out which part is bad.compression could also be an isue not likely if the problem came all the sudden.
SOURCE: 2002 kia sedona codes reading misfire no6 cylinder
Sounds like the ignition wires,from the coilpack to the plug,or the coilpack itself
SOURCE: po205 cylinder circuit open
The evidence suggests that you do indeed have a bad fuel injector. Inspect the wiring to make sure you don't just have a poor electrical connection there - then if that looks good replace the injector.
Ford Crown Victoria, Mercury Grand Marquis, Marauder, Lincoln Town Car 1999-2005
4.6L V8 - Auto 2
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
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Usually answered in minutes!
It will run right when u give it alot of gas but under normal driving it misfires
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