Engine Code 0355
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1st Gear
Joined: Apr 2025
Posts: 1
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Engine Code 0355
Received an engine code 0355. If the coil and spark plug have been replaced, I read it's the wiring or the ECM as the problem. Any tips on checking the wiring, please? If ECM is bad, would that reflect all
cylinders misfiring? Or does the ECM somehow isolate cylinders individually? I would prefer not to replace the ECM if I don't need to. Thanks!
cylinders misfiring? Or does the ECM somehow isolate cylinders individually? I would prefer not to replace the ECM if I don't need to. Thanks!
Driver
Joined: Jul 2023
Posts: 93
Likes: 10
From: MN
Wiring is religiously bad on these engines.
The main thing that goes bad on these ignition coil wires is the plugs themselves, which makes diagnostics pretty easy. On mine, the plugs were straight up missing, and the previous idiot just shoved the wires into the coils. Yours might be more subtle, like the clip is broken but didn't fully come off, or there's damage to the wire as it goes into the plug housing, or something of that sort.
The main thing that goes bad on these ignition coil wires is the plugs themselves, which makes diagnostics pretty easy. On mine, the plugs were straight up missing, and the previous idiot just shoved the wires into the coils. Yours might be more subtle, like the clip is broken but didn't fully come off, or there's damage to the wire as it goes into the plug housing, or something of that sort.
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Max Power
LS - 1st and 2nd Gen (1990-2000)
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Aug 24, 2009 04:06 PM
