P0355 Diagnostic Trouble Code Discussion for January 2026
Ignition Coil 5 Control Circuit Malfunction
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| Help Request | Posted | |
| 2004 Lincoln LS 3.9L Misfire VIN: 1LNHM87A74 P0355: Ignition COP 5 Primary/Secondary Circuit Malfunction. Vehicle came in with a misfire and code P0355, We replaced all the spark plugs and 4 coils.Using a stethoscope i can hear the injector working for the first 5 seconds or so on startup and then it stops i used a noid light and same result it would flash for... |
January 16, 2026 |
