Fuel Temperature Sensor A Circuit High

Where it lives

For P0183, the circuit described runs through the sensor. The description of P0183 reports a fault at the sensor.

Check these first

• An open in the fuel temperature sensor A signal wire
• High resistance at the sensor A connector terminals
• A failed fuel temperature sensor A
• A faulty ECM input for sensor A
• A poor sensor A ground

What to do next

1. Check the voltage at the sensor A signal wire
2. Inspect the connector terminals for a loose fit
3. Test the signal circuit for an open
4. Measure the sensor A resistance against spec
5. Repair the wiring or replace the sensor A
6. Clear the code and retest

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