I'll give my truck just a little gas and I get alot of knock retard and sometimes I'll get lean bank 1 and 2 DTC's
My truck is a 99 silverado with a 5.3 and a 4l60e
I'll give my truck just a little gas and I get alot of knock retard and sometimes I'll get lean bank 1 and 2 DTC's
My truck is a 99 silverado with a 5.3 and a 4l60e
wow, you are logging way too much useless stuff there.
Your fuel trims are going way + which (agreeing with the code) you are lean. You may have a leak post MAF causing this.
Sulski Performance Tuning
2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB
yeah I know I do stuff like that, could it be a bad fuel pump
It could be a lot of things. My first guess would be a leak after the MAF. You can check the fuel pressure pretty easily with a fuel pressure gauge and see if your pump is screwing with you.
Sulski Performance Tuning
2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB
I know my pump is on its last leg
OK, then why are you askinghaha
Replace your pump, that is pretty dangerous to ride around on a failing pump.
Sulski Performance Tuning
2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB
99 silverado PCMs are known for getting false knock . . . find yourself a 00=02 PCM
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