lexus_sc400_n20

Ok so i got my new MAF and installed the S-AFC and got it running great through the tach, but my idle is still at like 350-400 rpms and i have to raise it with the gas pedal because it gets so low. Is there anything i can do to fix this with the afc? or could it be the idle air module? or do i just need to let the computer adjust to it over like a week.

If you have seen my earlier posts, i had an sc400 MAF on there for like 3 weeks, and the idle problem didnt start happening until like 1 and 1/2 weeks after having it on. I put the stock sc300 MAF back on and the idle still sucks.

SRQ400

Got the same problem. So it's not your mods, check out the GS forum they have lots of posts about the on going problem.

henrynguyen

Adjust the screw on the AFM.

Lextreme

Make sure no one have mess around with your AFC setting. The Low (1000 rpm) is the idle buttom. I would set it to +/-0. Secondly, double check your TPS make sure its not loose. If that still give you problem. Double check your MAF and connections.