Lexus A.F.M. Yes/no

[koenigturbo]

I installed a Lexus a.f.m./ 550 injectors and no others mods yet? it has wiered miss fire at idle it like it has either a short in the coil pack or it runs like it has stuck valve but this a brand new engine it dosn't it all the time, it seems like it dose in warmer weather then I when to the supra a.f.m. it runs better(overall) seemily Don't know what to do,Lexus Yes/no?? to lean?? any one know?? or supra a.f.m...."yes/no?? to rich/ to lean I plan to do other mods later (bigger turbo and boost controll and exhaust

[Simann]

The Lexus afm (electronics from mk3 and LS400 are identicle) is bigger, so the computer tries to compensate the larger amount of air with a larger dose of fuel...causing a bogging or "misfiring" effect.

Its really just the motor is running so rich at idle. You might have fouled out some plugs though. I would check them before anything. I went through 3 sets of plugs in 1000 miles after my rebuild. tuning the car/getting it running right in time.

-Jonathan