Engine Stalls During A/C Operation

• Check A/C signal circuit to Engine Control Module (ECM).
• Check idle air control valve (if equipped) and wiring.
• Check Engine Control Module (ECM) and wiring.

Engine Stalls When Shifting From Neutral Into Drive (A/T)

• Check idle air control valve (if equipped) and wiring.
• Check park/neutral switch signal to Engine Control Module (ECM).