Does that happen all the time, just when the engine is cold, just when it's hot? Is it a flex fuel engine? Have you put a scanner on it? Any codes? What are the fuel trims? More details might help.
Cateye build
I have this 2003 Silverado I bought for 3k. It has a ton of issues. This truck was a v8 swap. The computer says it is out of a 03 Yukon xl. However I want to ensure the computer is reconfigured right so I’m trying to figure out if there is a way I can pull the vin off the block or something that will locate the Vin so I can reconfigure the computer to the engine
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