P0189
Fuel Temperature Sensor B Circuit Intermittent
Generic code
Fuel and Air Metering
High severity
Hard repair
Free on OBD DashX
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What P0189 means
- The fault code P0189 indicates that there is an intermittent issue with the Fuel Temperature Sensor 'B' circuit. This may lead to poor engine performance or a failure to start.
Possible symptoms
- Illuminated check engine light
- Decreased fuel efficiency
- Rough idling or stalling
- Engine may fail to start
Possible causes
- Malfunctioning fuel temperature sensor
- Damaged wiring or connections in the fuel temperature sensor circuit
- Loose or corroded electrical connections in the fuel temperature sensor circuit
- Failed engine control module (ECM)
Related parts
- Fuel Temperature Sensor: The fuel temperature sensor measures the temperature of the fuel in the fuel injector. Problems with this sensor lead to engine misfire, engine stalling
Possible solutions
- Replace the fuel temperature sensor
- Inspect and repair any damaged wiring or connections in the fuel temperature sensor circuit
- Clean or tighten any loose or corroded electrical connections in the fuel temperature sensor circuit
- Replace the engine control module (ECM) if necessary
Free on OBD DashX
P0189 on OBD DashX
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