Answer Question
gen 3 LS engine Check engine light wont go out Bank 1 knock sensor no codes given new knock sensors installed
engine new rebuild 20000 kms engine very quiet cleaned grounds replaced new connectors running 91 octane fuel in case of pre detonation no rattles can be heard we just dont know where to go next engine seems to run ok but using more fuel for sure. Truck is 2010 avalanche
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