Check Engine Light 01 Civic
07-22-2012
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Check Engine Light 01 Civic
Had a engine light come on today. Auto Zone ran test. Said it was Cylinder 1 misfire. I changed the plugs but light did not go off. What should be my next step?
07-22-2012
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Re: Check Engine Light 01 Civic
Which plugs did you use and did you gap them properly? What did the coil for 1 look like? Any cracks or signs of arcing?
07-22-2012
#3
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Re: Check Engine Light 01 Civic
If the misfire is still present, then you didn't fix it.
If the misfire is gone now that you changed the plugs, then go back to the Zone and have them clear the codes. It can take a while for the light to go out by itself.
Get the freeze frame data before they clear the codes.
See if the code comes back.
Compression test.
Swap coils around, see if the miss moves.
Valve adjustment
Valve job
Who knows?
Diagnosis.
If the misfire is gone now that you changed the plugs, then go back to the Zone and have them clear the codes. It can take a while for the light to go out by itself.
Get the freeze frame data before they clear the codes.
See if the code comes back.
Compression test.
Swap coils around, see if the miss moves.
Valve adjustment
Valve job
Who knows?
Diagnosis.
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