OUZBnd

The service engine soon light keeps getting tripped. I'll reset the computer and it might go for 2-3 weeks, or it might go for a few days, but it keeps coming back on. The codes Im getting are "lean bank 2" and "air metering device" I've cleaned the mass air but it came back on a couple weeks later. any suggestions?

98UAGT

Didn't you just put long tubes and a new mid-pipe on? If I am remembering the right mods for you, you are probably just moving too much air for your fuel amount. Get a tuner and bump up your a/f ratio and fuel curve, or get a dyno tune.

OUZBnd

i did, but the problem started before the install..

02StanGT

The air metering device of course your MAF you may need to clean it or replace it. The lean bank 2 is drivers side o2 sensors reading wrong might check into replacing or cleaning those as well.

04BlueGT

^Um, yep. My guess is O2s like he said^

OUZBnd

should I just try and replace both driver side o2's, or start with the easiest/cheapest. BTW, how much do those run? As far as the MAF, i've cleaned it once. I hate to replace it because it's a Pro-M, but we'll see what happens i guess

02StanGT

Do your rear one's have MILs on them?

OUZBnd

Yes, the rear have MIL's. The problem also started before the longtubes were installed. Logically, i should assume its the front since the rear have the MIL's, but I'm not clear on exactly how the MIL's work.