Originally Posted by richm
the other iscv wire (black one) is a constant main relay fed 12V supply, that also feeds Amal valve and injectors.
By all means try changing the TPS, but if the ECU is seeing 0.25-0.3V TPS signal voltage at idle, then that's all that is needed as far as the iscv operation is concerned with regard to the TPS signal.
the ecu IS seeing 0.25v @ idle , but the iscv is permanently open??
so there most be something else causing the iscv movement. or a wiring fault.
when i set the CO on the car, should it be with the iscv plugged in??
even if it causes the revs to rise to 1600rpm?