avezz28

I have noticed when I am atapping my car that at idle(2900 maf mhz) my drivers side ltrm is -3 and my passenger side is -10. Once I increase rpm speed the passenger side comes closer to -4 area and stays that way when cruising and part throttle but once I get bak to idle it goes back to -10. They both lock at 0 at WOT.

Any ideas why the passenger side would read richer at idle?

Thanks in advance.

iateyourcat

Mine was doing that. Everything I read pointed to a vacuum leak but I replaced the O2s and that cleared it up.