October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
System Check
- Ensure engine is at ambient temperature. Connect scan tool to DLC-2. Using PID/DATA MONITOR AND RECORD function, select ECT and RPM PIDs. Start engine.
- Engine speed should decrease as engine reaches operating temperature. If engine speed does not decrease or decreases slowly, check ECT sensor, IAC valve and related wiring.