Powertrain
generic / SAE
P0189
Fuel Temperature Sensor B Circuit Intermittent
The ECU detects intermittent dropouts on the fuel temperature sensor B circuit. Loose connector, chafed wiring or sensor failing under thermal load.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 89
Possible causes
- Connector loose or corroded high
- Wiring chafed medium
- Connector with intermittent contact under vibration low
Inspection / repair
- Difficulty: medium
- DIY: possible
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References
sae:J2012