Why would one bank run lean??
Why would one bank run lean?? I've noticed hesitation during part throttle acceleration. Looking at the wideband it appears that bank 2 is running lean (16-18+AFR) during this time. Here's the kicker...it only does this from 2000-2100 or so RPMs.
I'm thinking, either I'm losing fuel at that point or I'm getting an air leak. I swapped the injectors from side to side, to eliminate them. Can't figure out how an air leak could come and go.....ideas???
I'm thinking, either I'm losing fuel at that point or I'm getting an air leak. I swapped the injectors from side to side, to eliminate them. Can't figure out how an air leak could come and go.....ideas???
TECH Apprentice
Joined: Aug 2004
Posts: 321
Likes: 0
From: Buffalo, N.Y.
The only thing I can think of, is the cam sensor. A few important functions of the cam sensor:
detect misfires
determine which half of the engine's firing sequence is currently in operation
detect misfires
determine which half of the engine's firing sequence is currently in operation
reminds me of a stupid line from 'gone in 60 seconds' - Angelina talkin about a guy riding his brakes and nick cage comments saying "sounds like the left bank is runnin lean.' Yea sorry I know that wasn't helpful..
Originally Posted by Rescue Ranger
reminds me of a stupid line from 'gone in 60 seconds' - Angelina talkin about a guy riding his brakes and nick cage comments saying "sounds like the left bank is runnin lean.' Yea sorry I know that wasn't helpful..
Originally Posted by whiteLS1
bad injector possible.
I'll check for a leaking intake gasket.
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Originally Posted by JL ws-6
bad 02 sensor?
I'm thinking it's a leak, but what leak can come and go at a specific RPM?
Originally Posted by whiteLS1
switch the coils and see if that changes where it is lean. that would be my next step
OK, figured out that I've got a leak on the passenger side intake. Now the question is, how to fix it? I've already tried replacing the intake gaskets (both sides) with new ones. Re-checked the torque also. I'm wondering if I've somehow got a warped intake on that side.
BTW, it's a maggie (intake is part of the blower) so getting a new intake could be a costly proposition.
BTW, it's a maggie (intake is part of the blower) so getting a new intake could be a costly proposition.
