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Old 03-20-2011, 01:11 PM
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'06 G/C check engine light on after spark plug change

Hello-
Just changed my plugs and cleaned the throttle body. Now the check engine light is on. I thought I read somewhere here about this problem, but can't find it.
Replaced the plugs with the factory NGK plugs and cleaned the T/B from advice from here( remove, clean gently w/ alcohol, remove IAC and clean gently). Light is on solid, runs fine. Tried the key dance, didn't work.
Thought I read somewhere here that this is possible due to the PCM adjusting to the new plugs, and after a few trips, the light going off???
Thanks in advance
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Old 03-20-2011, 01:43 PM
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Re: '06 G/C check engine light on after spark plug change

do a reset. disconnect the negative battry terminal and step on brake for 30 seconds to drain everything. then reconnect and see if your light goes away.
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Old 03-20-2011, 03:56 PM
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Re: '06 G/C check engine light on after spark plug change

Thank you- it fixed the problem
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