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International Automotive Technicians Network
Re: P0300 2003 Chevy Sierra
Posted to Technical Tips Forum on 9/24/2013

The BLS (that is what you're building) is not as effective on the V8. Try it and get back to us :-)

Did you only run a static compression test? A dynamic test with a snap would have been helpful.

A snapshot of engine data at rpm would have been interesting... Login to read more.