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lean bank 1 and 2
Posted: Tue Sep 11, 2007 10:12 am
by hairdryer
Every now and then (maybe 1 time a month) the check engine light comes on and I get bank 1 and 2 lean.
Seems like it only does it under normal driving and coasting. My ltf's are good and wide open throttle is good.
I have the 93 tune in, it didn't do it with the 87 tune.
07 nbs vortec max, volant cold air intake
U 7194
RE: lean bank 1 and 2
Posted: Tue Sep 11, 2007 10:39 am
by 06MonteSS
got a log to look at, or numbers? what are your ltft numbers at??
RE: lean bank 1 and 2
Posted: Tue Sep 11, 2007 12:49 pm
by hairdryer
I don't have a log, but I think the ltft's were 0 to +1..
RE: lean bank 1 and 2
Posted: Fri Oct 12, 2007 12:28 pm
by southbeach
i have same problem that my 07 escalade shows check engine light, and error codes shows lean bank1 and or lean bank 2 after longer time coasting....
robert
RE: lean bank 1 and 2
Posted: Thu Oct 18, 2007 11:28 am
by southbeach
what inputs do you need additional.
robert
RE: lean bank 1 and 2
Posted: Thu Oct 18, 2007 11:30 am
by 06MonteSS
need to see where your long term fuel trims are at.....
RE: lean bank 1 and 2
Posted: Thu Oct 18, 2007 11:59 am
by hairdryer
I cleaned my maf and fixed mine. I guess the cold air kit got it oily or something.
RE: lean bank 1 and 2
Posted: Thu Oct 18, 2007 12:53 pm
by southbeach
mine is almost brand new, 4000 miles an just got in "coasting mode" clean bank 1 & 2