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Need help with ignition problem....

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Old Jun 2, 2008 | 07:56 PM
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Default Need help with ignition problem....

im getting these codes

P0 351 IGNITION COIL A01
PRI/SEC CIRCUIT
P0 352 IGNITION COIL B2
P0 353 IGNITION COIL C3
P0 354 IGNITION COIL D4

I think there is a grounding problem with all four coils but do they terminate somewhere on the block or tranny? i Just changed out my clutch and i run a greddy turbo kit. everything ran fine before i changed the clutch so thats probably where my problem is does anyone know were these ground out at? thanks
Old Jun 2, 2008 | 09:51 PM
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Is the car starting & running or does it just crank over?
The code refers to no IGF signal from the igniters of each coil to the ECM. The yellow wire coming from each coil connector sends the IGF signal to the ECM, all 4 yellow wires splice together into 1 single yellow wire that goes to the ECM, so it almost sounds like the yellow wire is damaged.
If you want to check the ground, its on the back of the cylinder head, by that I mean the side that faces the direction of the battery, you should see a collection of white wires with black stripes on them, they should be secured properly to the head.
Old Jun 2, 2008 | 10:10 PM
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car runs but its in limp mode after ecu reset throws cel vsc and trac light.... thanks imm check that any toehr suggestions
Old Jun 4, 2008 | 11:52 AM
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Check your ground connection on your transmission under the starter. Make sure it has good contact. Check all you connections and check your harness to make sure it didn't get pinched when you changed your clutch.
Old Jun 5, 2008 | 11:23 PM
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well i metered all the wiring having to do with the igf to ecm continuity and the ohms were good. so i double backed to the coils and tried trouble shooting those. i get the proper voltage at the electrical clip but when i spark tested each coil at every position i found two would not throw spark at any position. Do you think two bad coils would throw codes saying each coil was no good?
Old Jun 7, 2008 | 08:11 PM
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The code would only be generated per bad cylinder. With the 4 codes it would have to be all coils that were bad, which I find hard to believe.
Did you check your ground connections?
Assuming your grounds are good, mark the 2 coils that you think are bad, install all coils properly. Clear the CEL. Crank the engine so it starts then shut it off. Check codes, are they the same 4 or just the 2 for the bad coils.
The reality is that if 2 coils were not firing, the box wouldn't even start. If only 1 coil was bad, it would start but would run like a bag.
Check the ground wire continuity from each coil connector to ground, I still think it has to be something common to all coils.
Old Jun 13, 2008 | 07:26 AM
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so anyways thanks for the input. ordered two new ignition coils and it solved the problem no more codes. The only thing is i dont understand how two went out at the same time the only thing i found wrong was the ground from the battery to the chassis wasnt secure from the clutch change. unless there was some power surge or lack there off power to the ignitors that caused the #2 and 3 cylinder ignition coil to go... ow well
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