what can cause bank 1 to be way lean and bank 2 to be rich? if the injector pw are the same between banks?
what can cause bank 1 to be way lean and bank 2 to be rich? if the injector pw are the same between banks?
'04 Tahoe AWD, trickperformance turbo kit, TC78 turbo, 4"magnaflow muffler, Circle D triple disc 3,000, FLT LVL 7 4L60E, L92, 227/235 111lsa.
Old 5.3=12.33 @110mph
http://www.streetfire.net/video/turb...mph_741849.htm
Is this only at idle or during acceleration also? My first though it either a bad O2 sensor or a vacuum leak
-Eddie
1998 GTP - 3.4 [3.2] [3.0] MPS - custom CAI - F.1 Ram Air hood - Gen V - XP Cam - Ported Heads - 1.84/1.60 Si valves - 1.6 HS Roller Rockers - 72mm Ported TB - LQ4 MAF - 42.5# Lucas Injectors - Pacesetters
1/4 PB - 13.025 @ 106.81 MPH w/ 2.069 60' (before Gen V or ported heads)
2021 Chevrolet Colorado 2.8 Baby Duramax
here is a log. i have more vacuum now at idle then before. by about 2"s i put the wideband on both banks and it confirmed it. if i could get bank one to equal bank 2 i think it would be fine.
'04 Tahoe AWD, trickperformance turbo kit, TC78 turbo, 4"magnaflow muffler, Circle D triple disc 3,000, FLT LVL 7 4L60E, L92, 227/235 111lsa.
Old 5.3=12.33 @110mph
http://www.streetfire.net/video/turb...mph_741849.htm
I have the same problem.Originally Posted by 4.8t
Did you get an answer to your question?
If so, How did you solve it?
Thanks.
i think it was mostly mis fire. not sure.
'04 Tahoe AWD, trickperformance turbo kit, TC78 turbo, 4"magnaflow muffler, Circle D triple disc 3,000, FLT LVL 7 4L60E, L92, 227/235 111lsa.
Old 5.3=12.33 @110mph
http://www.streetfire.net/video/turb...mph_741849.htm
I found my problem.
My exhaust had a pin hole leak right at Bank 2
O2 sensor.
Welded it up and fixed the problem.
Now it idles at 14.6 on bank 1&2.
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