c5 all coilpacks have codes
11-22-2014, 08:01 PM
#1
5th Gear
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c5 all coilpacks have codes
Hay guys so I have an issue with coil pack codes, all codes for A-H read on obdII. I have no idea on how to fix this. What i have done so far, new coils, plugs, plug wires, looked at the coil pack grounds and they are good. It all started with hesitation on WOT so i looked into it. Fuel pressure is 60 plus all the time. Now after replacing the packs and so on, it misfire and gives me all codes P0351, P0352, P0353, P0354, P0355, P0356, P0357 AND P0358. HAS ANYONe had this issue befor, any help or ideas will be appreciated.
11-23-2014, 10:29 PM
#2
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St. Jude Donor '14
Check the voltage at the injector fuses with the engine running, should be within .3v of battery voltage. Possible ignition switch failing.
Clear the codes. Run the engine and wiggle the injector harnesses. See if it misfires and resets all 8 codes. You either have a poor connection/splice on either the power or ground circuits, a bad ground or a bad ignition switch.
Check connectors c109 and c110. Check ground g107. Check PCM connector terminals.
Clear the codes. Run the engine and wiggle the injector harnesses. See if it misfires and resets all 8 codes. You either have a poor connection/splice on either the power or ground circuits, a bad ground or a bad ignition switch.
Check connectors c109 and c110. Check ground g107. Check PCM connector terminals.
11-24-2014, 04:17 PM
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Its expensive to Easter egg isn't it.... 
You need to get busy with a meter and do some troubleshooting..
Do you have the schematics for the coil electrical circuits.
Marty is on target. I suspect low voltage also. Make sire that the ground on back of the head is not compromised.
Ive see the wires loose and frayed in the ground eyelet but the eyelet was tight on the head.
BC.
You need to get busy with a meter and do some troubleshooting..
Do you have the schematics for the coil electrical circuits.
Marty is on target. I suspect low voltage also. Make sire that the ground on back of the head is not compromised.
Ive see the wires loose and frayed in the ground eyelet but the eyelet was tight on the head.
BC.
11-24-2014, 09:44 PM
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Its expensive to Easter egg isn't it....
You need to get busy with a meter and do some troubleshooting..
Do you have the schematics for the coil electrical circuits.
Marty is on target. I suspect low voltage also. Make sire that the ground on back of the head is not compromised.
Ive see the wires loose and frayed in the ground eyelet but the eyelet was tight on the head.
BC.
You need to get busy with a meter and do some troubleshooting..
Do you have the schematics for the coil electrical circuits.
Marty is on target. I suspect low voltage also. Make sire that the ground on back of the head is not compromised.
Ive see the wires loose and frayed in the ground eyelet but the eyelet was tight on the head.
BC.
11-24-2014, 10:10 PM
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Here are the schematics that you need. Some power comes from the battery, one comes from the IGNITION SWITCH when the key is in RUN/ON.
Make sure that you have the ignition powered voltage at full battery voltage.
Hope this helps.
Bill
Make sure that you have the ignition powered voltage at full battery voltage.
Hope this helps.
Bill
11-24-2014, 10:14 PM
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
Ahhhhhh,, I just saw that you said Ing 1-2
Some more schematics. Look where they over lap:
Some more schematics. Look where they over lap:
11-25-2014, 11:06 PM
#8
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Thanks again for all the help guys. Being in the military dose not leave me alot of free time or money haha. So i went off the suggestions you make and found this. I cant find what they control but looks like pin 13 and 14. I know any bare wire is no good but do you happen to know what they go to(PCM) and agian thanks for all your help.