SuperStock Posted August 14, 2009 Author Report Share Posted August 14, 2009 I would say it is time to replace your MAF. Quote Link to comment Share on other sites More sharing options...
SuperStock Posted August 15, 2009 Author Report Share Posted August 15, 2009 I changed my plugs and wires today, I would say it runs alittle smother. But I guess we will find out if the CEL light flashes again. I havent heard anything rattle yet we will see what happens? Quote Link to comment Share on other sites More sharing options...
sly Posted August 17, 2009 Report Share Posted August 17, 2009 I changed my plugs and wires today, I would say it runs alittle smother. But I guess we will find out if the CEL light flashes again. I havent heard anything rattle yet we will see what happens? Driver side Cat went on my XL Denali. Had the same symptoms. Bad cat. Their is a way for the shop to pull the 02 sensor after the cat and check the flow. I took the truck to the dealer and they replaced the cat. If you are under 80k and it is the cat the dealer should replace it. Quote Link to comment Share on other sites More sharing options...
SuperStock Posted August 18, 2009 Author Report Share Posted August 18, 2009 Yea I would go to the dealer but I am at 83k and they will prob not fix it because all of the added performance parts caused it to happen. Quote Link to comment Share on other sites More sharing options...
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