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The mkiv Supra Owners Club

Cold start problem


b_have

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Seem to have cured my idle problem at long last, I traced it to the RLTC connecters (two injector wires touching) But now have a cold start problem.Thinking it maybe coz i have been resetting all those 'anti twiddle' throttle stop adjusters.Does anyone know the proceedure for setting these up?

The symptoms are : Start from cold, AFR shows mega rich. Back of AFC about -30% runs fine till warm, then have to go back to original setting of -9%@1000 rpm. Have the feeling that the TCV may be the problem, but already cleaned and checked this. Anyone know how far the stepper motor should open this when cold? When i stripped it, it seemed only partially open.

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