You probably have vacuum leak on one bank.
What is the MAF reading at idle when the engine warmed up?
Provide data at idle when the engine is warmed up.
same data? or do you need more?
PS i just got 6 NGK BKR5EKB-11 Plugs for under $24 at advance auto. weekend project.
I changed the plugs on my 2003 V6 auto long box 2wd. I put in NGK double prong, Set the gap at .044 and it runs fine. PO had Autolite plugs in it and I they looked good. My main issue is that my fuel trims are looking weird. New air filter, cleaned the MAF, throttle body looks great. Below is taken at Idle warmed to Operating temp. Anyone got any Ideas?
3.1% LTFT
11.7% LTFT
0.8% STFT
8.6% STFT
these numbers are not getting any better.... clues?
these are the PID numbers at idle and 2060 rpm. I have a new denso MAF sensor and a fuel filter on the way 91,000 miles Automatic V6 longbox
Did you change the fuel filter?