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Bank 2 reads lean - what's the deal?

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Old 07-11-2006, 06:44 PM
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thanks for the info!
Old 07-11-2006, 06:46 PM
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Originally Posted by TIM Z
thanks for the info!


The pigtails are different though, so if you do buy a set be prepared to cut and splice.
Old 07-11-2006, 07:05 PM
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cool to know, i dont need headers, the stock manifolds work good for my app.
Old 07-17-2006, 07:31 PM
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Damn so close, but no cigar for me...I am having somewhat of the same problem right now, Bank 1 is lean... I'm not boosted but bank 1 is running lean after I changed out the o2's w/ the Bosch ones. Took it up to my tuner and he logged it and then we swapped 'em and bank 2 is still perfect but bank 1 got better (it was showing +25 and now its at +8). So we adjusted the tune a little and I was on the way back home and then the truck started bucking and running real rough when on the gas. Logged it and the bank 1 sensor was showing 45mV and not switching at all so I disconnected it to make it to my bro. house 70 miles away still have to make it 35 more miles to the house. Can't figure this **** out. I guess I'll do more trouble shooting tomorrow...Zed
Old 07-17-2006, 07:32 PM
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Update on mine, I made a blockoff plate for the EGR and no change, so it's not an EGR leak. Next step for me is to R&R the passenger side header to see if there is a damaged gasket.
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