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Why has it begun to knock now?

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T62TTA

New Member
Joined
Jul 8, 2004
Messages
19
Translator plus and extender chip LS1 MAF
All the BLM between 125-130
Car had set a code 42 so I reset the computer and its gone

Casper Knock gauge on pillar begins lighting up as early as 6 psi and my EGT seem to have gone up everywhere while I drive.

Settings are extremely conservative with The T-plus. Car is a daily driver for now, with 91 octane. Car would hardly ever begin knocking unless I was on it for a while at 14-15psi. Now for no reason car begins to knock the instant I get on the throttle and begins building any kind of boost.

I maintain the car pretty well. Less than 1500 miles with new plugs, fuel filter, oil change. Fuel would rise 1 for 1 psi with fuel gauge attach on windshield, however I have not verified it now to see if the fuel psi is keeping up.

A well tuned car just from one day to another began acting up. What to check for?

Code 42 was set because of Direct Scan so I unhooked it completely. Also the Idle hunts at times. I have a Wide Band, EGT, and boost gauge.
 
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