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Check timing. I got knocking noise after I realized the TB had skipped a couple teeth. That happens apon startup when the engine has that increased load right away... or atleast that was my reasoning why it kept getting worse everytime I started it.
Are you logging? Because the first thing I noticed when it started was lots of knock when you approached boost at all. I mean when it got bad I couldnt even get close to 0 vacuum the knocking was soo loud.
At fisrt I thought it was bad gas until I heard the audible knocking start. Just a thought...
I dont know anything about rod knock so...
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