bank 1 is the hard one to reach.
the long term fuel trims are out of range and the computer can't compensate for the 'too lean' condition with short term fuel trims.
some causes are vacuum leaks (could be a bad hose on that pcv valve you replaced?) in any of the old hoses or intake snorkle. do a cigar smoke test to verify and fix/replace hose(s). (google scotty kilmer cigar smoke test)
could also be dirty maf wires. dont' have one of them there oily k&n filters do ya? clean with cotton swab and alcohol and be careful. (see haynes manual for pics of the part)
could also be not enough fuel but if it's running ok, that probably isn't it. does it ever stumble/hesitate?
put an obd2 monitor on it when you think it's fixed and reset the cel and then graph out your ltft's on bank1 to verify they are near zero.
tony
the long term fuel trims are out of range and the computer can't compensate for the 'too lean' condition with short term fuel trims.
some causes are vacuum leaks (could be a bad hose on that pcv valve you replaced?) in any of the old hoses or intake snorkle. do a cigar smoke test to verify and fix/replace hose(s). (google scotty kilmer cigar smoke test)
could also be dirty maf wires. dont' have one of them there oily k&n filters do ya? clean with cotton swab and alcohol and be careful. (see haynes manual for pics of the part)
could also be not enough fuel but if it's running ok, that probably isn't it. does it ever stumble/hesitate?
put an obd2 monitor on it when you think it's fixed and reset the cel and then graph out your ltft's on bank1 to verify they are near zero.
tony