jamesbondsc300

I replaced the throttle body(no more leaks now) I plumbed just the MAF into the intake (NA) its still doing the same thing (missing like hell at 3500rpm) I checked the afc neo wiring, it is correct. Whats left? Could this be a coil or ignitor problem? Could an injector or two be bad and sticking open causing the super rich condition? With the car running NA or turbo(not under a load) when you give it all the gas off idle it will rev fine until about 3500rpm the starts missing so bad the revs won't go higher.....if you give it partial throttle off idle it will rev fine to redline. Under a load it won't go over 3500-4000k because its missing so bad weather you run NA or turbo. I'm losing it here....someone please please HELP

airpowr

Maybe ecu? Bad TPS table? I know when you tune you must set your TPS voltage so the ECU recognizes partial and full throttle. So, I would disconnect the AFC and see what happens, seeing you did everything else it might be time to check the ECU.

jamesbondsc300

buddy of mine came over yesterday in an NA sc300 I sold him. We checked the afc wiring(its all good) swapped ECU, igniter, MAF and coil(nothing!) Still doing the same ole crap! Now the miss is pretty bad(all the way through the rpm range), but we did unplug the injectors one at a time and found that #2 and #6 had no effect on the miss when unplugged. The car would go dead when any of the others were disconnected so I ordered 550cc's from supra store and I'm getting a v8 MAF from a supra buddy (hope this fixes it!) I never thought of disconnecting the injectors before because it was running so rich...are the "working" injectors trying to compensate for the faulty ones?