Idle resetting procedure for '86-'93 5.0L Mustangs. Here is something that is sure to come in handy for those of you that have superchargers and modified fuel systems with larger injectors and recalibrated MAF's. Here is the procedure: 1) Clear idle memory by disconnecting battery for 20+ minutes 2) Disconnect the Idle air bypass solenoid 3) Reconnect battery 4) Start engine and set idle speed to desired RPM 5) Turn off engine and reconnect the air bypass solenoid 5a) Optional -- set TPS to 0.90 - 0.99 volts (Do not exceed 1.00 volts) Use a digital volt meter from the green wire on the TPS to ground 6) Start engine and let it idle for 2 minutes with no accessories on 7) Turn off engine for two minutes 8) Start engine again and run for 2 minutes with every accessory turned on 9) Turn engine off again Your computer has now relearned the idle. This procedure assumes a clean ICS valve. If your ICS is carboned up then this will probably not help.