What would cause bank1 to be lean and bank2 to be ok?
Disabled cl, it would still update long term fuel trims, disconnected 02s, and no o2s trims, but bank1 still lean and bank2 is ok, at wot bank2 is 12.20 AFR and bank1 15.8 AFR, both banks same IPW, same VE, is this a mechanical fault?
its a 2004 TJ, 6.1L engine