P2A44 code meaning
Alternative Fuel Tank B Pressure Sensor Circuit High
Powertrain system Generic code P2Axx codes Check engine light
What P2A44 means
The counterpart to P2A43: the voltage on the tank B pressure sensor signal sits above its valid range. TransEco, for the tank A sensor of its gas conversions, names an open sensor or a short to power as the cause of the High code, which matches the usual pull-up layout of such inputs where a broken signal or ground wire drives the reading upward. A seemingly overfull cylinder is the risk here: the gauge may stay at full and the module may keep drawing on tank B as if gas were left, until the engine stumbles. No manufacturer lists P2A44 publicly, and the tank A variant P01A1 appears in Ford's 2014 Boss 302S code list. Start the check with the sensor ground and the plug, then measure signal voltage with the system depressurised.
P2A44 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyHard
- Typical labor1 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2A44
- Check engine light
- Gauge stuck at full for tank B
- Stumbling when tank B actually runs empty
Common causes of P2A44
- Most likelySensor ground or signal wire open
- PossibleSignal wire shorted to 5 V or battery voltage
- PossibleTank B sensor faulty internally
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Alt fuel tank b pressure sensorWiring harnessAfcm
What each part of P2A44 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| A | Area: hybrid propulsion. |
| 44 | The exact fault in that area. |
What to do next
- Note P2A44 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2A44
What does P2A44 mean?
P2A44 means "Alternative Fuel Tank B Pressure Sensor Circuit High". The counterpart to P2A43: the voltage on the tank B pressure sensor signal sits above its valid range. It is a generic code, so it means the same on every make.
Is it safe to drive with P2A44?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2A44 fail an emissions test?
Yes, it can. P2A44 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2A44 to fix?
Difficulty: hard. A typical repair takes 1 to 3 hours of work. This is a job for a workshop.
Will P2A44 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.