Diagnostics say cyl 1 not firing - changed coil nothing happened.

20

Asked by Mar 01, 2014 at 04:22 PM about the 2003 Buick Century Base

Question type: Maintenance & Repair

Then tried moving new coil to all three spots - still misfiring.  Should I try replacing all
coils - could 2 be bad?  I changed wires and plugs approx 2 years ago.  Need advice.  
Thanks in advance

1 Answer

105,885

http://www.obd-codes.com/p0301 --- check this out for possible causes and solutions

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