Powertrain
generic / SAE
P2A79
Alternative Fuel Hydraulic Pump Pressure Sensor Circuit Intermittent/Erratic
The alternative fuel hydraulic pump pressure sensor signal drops out or jumps intermittently. Loose connector or noisy ground.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / 79
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: 200–1000 €
- Estimated time: 1–4 h
- Component: alt fuel hyd pump pressure sensor
- Component: wiring harness
- Component: afcm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012