Powertrain
generic / SAE
P25B1
Fuel Level Sensor B Stuck
Same condition as sensor A stuck, applied to the second fuel level sensor B. Saddle tanks (often AWD vehicles) and large trucks use two sensors — one per tank chamber — averaged for total level. A stuck B leaves only A and reduces accuracy.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / B1
Possible causes
- Stuck float high
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–800 €
- Estimated time: 1–3 h
- Component: fuel level sensor b
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012