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Old 01-21-2013, 08:34 AM   #1
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CEL - After spark plug / tube replacement - What do I do?

I have done a few searches on this topic, but am not sure what to do next short of flatbedding it to my indy.

I changed all 6 spark plugs (beru) and tubes. I followed the Pelican book and Pedros instructions.

The coils seemed to be in good shape.

First time I started up the car, I had a flashing CEL and the car felt like it was stumbling. Shut it off and got myself a Innova OBD2 tool. P0300, PO303 (cyl 3), P0302 (cyl 2) misfires.

Ok, then I rechecked those areas and found that the wire to the coils did not "snap" tight. I even pull out the coils and re installed them to make sure they were firm.

Started up again, and I could tell it sounded much better with no stumbling like what I would notice during a misfire. However, I still have a CEL but no "flashing" CEL. OBD2 tool shows P0303. But the car idles ok like before. Revved it to 3000rpm and it sounds good.

Should I clear the codes? I don't know how to do that. Or do I get it towed?

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Old 01-21-2013, 08:49 AM   #2
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Clear the codes and see if any return.
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Old 01-21-2013, 08:59 AM   #3
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JFP - How do I clear the codes? Thanks
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Old 01-21-2013, 11:02 AM   #4
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Many diagnostic tools provide an option to clear the codes. While I have not used the specific tool you mentioned, I'd suggest taking another reading. Once you've done so, you should have an option to clear them. The tool's manual should tell you exactly how to do so.
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Old 01-21-2013, 01:00 PM   #5
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Thanks - You are right. I just reread the manual and used the erase function to clear the CEL. Drove it around for 30 minutes - No CEL!!! YAY!
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Old 01-21-2013, 01:26 PM   #6
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Gotta love this forum, right?!!?

Go 9ers!

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