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Old 07-28-2021, 03:56 PM   #1
Drives: Chevy Camaro zl1
Join Date: Jul 2021
Location: SC
Posts: 3
STFT BANK 1 AND STFT 2 ARE 10% OFF. What could be the cause

I'm lost and running out of troubleshooting options. According to my VCM Scanner logs, my STFT 1/2 are 10% apart. seems like I have a vacuum leak of some sort on my bank one.. I've done a leak test by spraying break cleaning along the base of the blower, valve cover, catch can tubes, exhaust manifolds, and pvc lines. I've also cleaned my O2 and wideband sensors, I have 0 leaks coming from my exhaust.
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mucleman21 is offline   Reply With Quote
Old 08-13-2021, 06:43 AM   #2

Drives: 2011 Camaro SS 6sp
Join Date: Nov 2016
Location: Drivers Seat
Posts: 1,728
I cant help you with mechanical issues from here, but I was just curious why your LTFTs are not kicking in to help balance things out.
TMS Dart 427 FED M311s, ESS Tuning G4 Blower, DSX Tuning Triples and FF, FIC1300, Mcleod RXT 1200HD, 1030whp 925wtq.
eLeSthree is offline   Reply With Quote

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