Engine RPM or Speed Limiter Reached
2002-2005 Ford Explorer 4.6L V8
Description
The engine RPM or vehicle speed has reached the programmed limiter. The PCM has activated the rev limiter or speed limiter to protect the engine and drivetrain.
Symptoms
- Power cut at high RPM
- Speed limited
- Possible Check Engine Light
Common Causes
- Engine over-revved
- Vehicle speed exceeded programmed limit
- Incorrect PCM programming
- Transmission not upshifting
Diagnostic Steps
- Check for transmission shift DTCs
- Verify PCM calibration is correct for vehicle
- Check if aftermarket tuning has been applied
Repair Notes
Normal operation if occurring at expected limits. Check transmission if limiter activates at lower-than-expected speeds.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
P1270 on Other Vehicles
Common Questions
What does code P1270 mean on a 2002-2005 Ford Explorer?
P1270 stands for "Engine RPM or Speed Limiter Reached". The engine RPM or vehicle speed has reached the programmed limiter. The PCM has activated the rev limiter or speed limiter to protect the engine and drivetrain.
What are the symptoms of P1270 on a Ford Explorer?
Common symptoms of P1270 include: Power cut at high RPM, Speed limited, Possible Check Engine Light.
What causes P1270 on a 2002-2005 Ford Explorer?
Common causes of P1270 include: Engine over-revved, Vehicle speed exceeded programmed limit, Incorrect PCM programming, Transmission not upshifting.