P011A
Engine Coolant Temperature Sensor 1/2 Correlation
Generic code
Fuel and Air Metering
High severity
Moderate repair
Free on OBD DashX
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What P011A means
- Signal correlation problem detected between the Engine Coolant Temperature sensor and Fuel Temperature sensor
Possible symptoms
- Engine hesitation, backfire, erratic acceleration
- The engine may show signs of overheating.
- The torque converter clutch may not engage or disengage causing the vehicle not to move
- The transmission could overheat
Possible causes
- Low engine coolant level
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor circuit poor electrical connection
- Rusty and/or corroded Engine Coolant
- Faulty or corroded Engine Coolant Temperature wiring or connections
Related parts
- Engine Coolant Temperature Sensor: The coolant temperature sensor measures the temperature of the engine coolant. Problems lead to engine overheating
Possible solutions
- Check the ECT sensor connector with the key on and the engine off. There needs to be a steady 5 volt reference voltage and a very good ground
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P011A on OBD DashX
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