why does my check engine light comes on when i accelarate in my 2003 GMC denali

Asked by May 31, 2014 at 12:02 AM about the 2007 GMC Yukon Denali AWD

Question type: Maintenance & Repair

with the air condition on i giver it a good bit of gas the check engine light comes on but
not with the air condition off, Unless i'm going up a hill and gun it and then the check
engine light comes on? i changed the two up stream oxygen sencors, spark plug wires
cleaned the fuel injectors,New air filter.

3 Answers

112,415

What is the code for check engine light?

1 of 1 people found this helpful.
Best Answer

When i had it checked no reading can been found is there a fuse that will not allow the code from being seen if blown?

I think the shop cant read the code if it has gone by the time you get to the shop.

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