P2E60Cylinder 8 Alternative Fuel Misfire Detected
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2E60 is the last cylinder-specific code of the alternative-fuel misfire group and points to cylinder 8; the next code, P2E61, covers misfire with low fuel. Petrol twin: P0308. No manufacturer documents P2E60 openly. On GM V8s cylinder 8 is the rear cylinder of the even-numbered bank, on Ford V8s the rear of the second bank. In Ford's 1999 bi-fuel LPG/CNG system for the 5.4-litre V8 a metering unit called Compuvalve supplied gas, and an adjustable tuning tee split the flow between the two rails, so a poor split can starve one side. A patent on cleaning Compuvalve injectors names compressor oil as the main deposit. A GM patent shows the protective idea behind such codes: switch a misfiring cylinder to liquid fuel instead of cutting it, which would cost about a quarter to a third of torque.
- What you may notice
- Misfire on gas, possibly with lean codes on one bank
- Engine shakes at idle on gas
- Check engine light
- Likely causes
- LikelyDeposits from compressor oil in the gas injector serving cylinder 8
- PossibleCoil or plug on cylinder 8, often hard to reach at the rear of the engine
- RareUneven gas split between the two rails starving the bank with cylinder 8 (older bi-fuel systems)
- RareValve seat wear on cylinder 8 after long gas operation
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · 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.