Codes help please

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02-25-2007, 11:39 PM

Broncolou

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Codes help please

Got 4 codes today
483 cooling fan speed
341 cps rationality
236 boost sensor rationality
2509 ecm/pcm intermittent signal

Is there some harness to look at for these codes. I started my truck and let it idle for about 1/2 hour before I went to plow and they were there when I got in. The check engine light went off after a few key starts but I obviously have an issue. Any help would be appreciated.

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02-25-2007, 11:42 PM

973604x4

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Quote:

Originally Posted by Broncolou

something happened but it runs fine and now the check engine light went off after so many key cycles so whatever caused the CEL is not happening anymore....i wouldn't worry too much. Clear the codes and watch for it to happen again...if it does. electronics encounter glitches occasionally....