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Symptom: P1281-ENGINE IS COLD TOO LONG When Monitored and Set Condition: P1281-ENGINE IS COLD TOO LONG When Monitored: The ignition key on, engine running. Set Condition: The engine does not warm to 176 deg. F while driving for 20 minutes after start. POSSIBLE CAUSES ENGINE COLD TOO LONG TEST ACTION APPLICABILITY 1 Note: The best way to diagnose this DTC is to allow the vehicle to remain t, set the engine RPM to 1500 and allow the engine to warm up for 10-15 minutes. t, monitor the ENG COOLANT TMP DEG value during the warm up cycle. Make sure the transition of temperature change is smooth. All Yes → Test Complete. No → Refer to the Service Information for cooling system performance 153 DRIVEABILITY - GAS |