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.

Code Enable Criteria

Engine run time is greater than one minute.
ECT is greater than 140°F (60°C).
TP angle is greater than 7 percent.
No CMP, CKP, ECT, EGR, EVAP purge solenoid, fuel trim, IAT, MAP, misfire, system voltage, or TP sensor DTCs are set.

DTC sets when O2S1 voltage is not fluctuating outside 300-600 millivolts for greater than 49 seconds.