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Check engine light with reduced throttle response

2K views 4 replies 4 participants last post by  devra888 
#1 ·
Hello,
My 04 lly is starting to throw the check engine light, and drop the throttle limit to 2000 Roms. Nothing consistent triggers it, it just happens every 1 or 2 weeks. Disconnecting and reconnecting the batteries will clear it for week or two, when it runs normal. The trans (both)and fuel filters were replaced around 25000 miles, and the K&N air filter is relatively clean. The truck has a total of about 64000 miles on it. Any ideas?
 
#3 ·
maybe next time you get the CEL take it to someone with a scanner or or the deal to tell what code your throwing.. then bring it back to the forum.. it will be much easyier to help you with the question.. good luck!
 
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