A/C Idle-Up Signal
On models with A/C, when A/C compressor is engaged, a signal is sent from A/C amplifier to the ECM. ECM uses this signal with other inputs to determine engine idle speed and fuel mixture.
On models with A/C, when A/C compressor is engaged, a signal is sent from A/C amplifier to the ECM. ECM uses this signal with other inputs to determine engine idle speed and fuel mixture.