P2A24Alternative Fuel Tank Shutoff Valve B Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2A24 means the alternative fuel module sees the control line of shutoff valve B sitting too low. TransEco Energy, which converts trucks to CNG, assigns it in the fault table of its AFCM v1.4 to a lead shorted to ground or open, lights the MIL on dedicated and bi-fuel systems alike and does not force a fallback. The same table prints P2A14 in a second column beside it, a number that current code lists give to injection pump metering C. Ford's 2014 Boss 302S code list also includes P2A24, though without the MIL marker it shows for P224E. Chafed wires along the cylinder mounts are a classic cause. P2A25 is the high counterpart, P2A28 the matching fault on valve C.
- What you may notice
- Check engine light
- Gas from tank B unavailable, range reduced
- Likely causes
- LikelyControl wire of valve B chafed through to ground at a tank bracket
- PossibleOpen lead, which the TransEco module reports under this code
- RareShorted turns in the coil of valve B
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.