Powertrain
generic / SAE
P2A45
Alternative Fuel Tank B Pressure Sensor Circuit Intermittent/Erratic
The pressure sensor signal of alternative fuel tank B drops out or jumps intermittently. Loose connector or noisy ground.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / 45
Possible causes
- Sensor connector not seated high
- Noisy ground reference medium
- Connector with intermittent contact under vibration low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–800 €
- Estimated time: 1–4 h
- Component: alt fuel tank b pressure sensor
- Component: wiring harness
- Component: afcm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012