Help with knock

Rob Lyons

Member
Joined
Feb 10, 2018
Having knock at 8lbs trying to figure out why. For some reason I couldn’t post log or photo of run on other sites maybe it a post here and you can see what’s going on.
 

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This happened to me before, drove me nuts. If your using a stock MAF sensor, It could be that.
 
Hard to tell from that snap shot. It looks like you are a little on the lean side. Need a file to see what's going on.
 
TPS is low for sure, if it's at .38 at idle.
I typically set mine between .44 - .46 at idle.
WOT without the floor mat and key on, I look for minimum of 4.5 - 4.6v.
But honestly, you have other issues because at 8psi, you should not have any knock, if everything checks out ok. And you have 93 octane in the tank.
One more thing, is that Powerlogger pic you posted WOT?
If so, your TPS is only showing 2.74 v, which is really bad under WOT.
What is your TPS showing key on, and WOT?

-Patrick-
 
Having knock at 8lbs trying to figure out why. For some reason I couldn’t post log or photo of run on other sites maybe it a post here and you can see what’s going on.
What the combo and fuel being used?have you tried to richen it up?
 
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