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Misfire Codes On All 4 Cilynders And Ignition Signal Fault On Ignition Coils

1.3K views 0 replies 1 participant last post by  rodx  
#1 · (Edited by Moderator)
Hello,

I have a S40 2.0 Non-turbo, and I'm experiencing that the engine hesitates on acceleration and engine missfires when driving my car.

Well, I used a generic scanner and It gave me the codes:
P0351, P0352 (Ignition coils fault)
P0301, P0302, P0303 and P0304 (cylinder misfire).

After that I replaced:

-Ignition coils (both)
-The cable that come from to ECU to both ignition coils (because it looks toasted by the engine heat)
-The spark plug wires (for the two sparks)
-Spark plugs (all)

When I replaced all that, the engine is working with the same problem... and all the codes are still there !!.

Thanks if you can give me a clue of what's happening.