P1270
Engine RPM Or Speed Limiter Reached
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Vehicle maximum speed limit
- Engine power drop at high speeds
- Unstable engine operation at high speeds
- The Check Engine light comes on
- The car does not develop full power
Causes
- Speed sensor malfunction
- Problems with the crankshaft position sensor
- Throttle valve malfunction
- Wiring problems
- Incorrect ECU settings
How to Fix
- Check the speed sensor and its wiring
- Diagnose the crankshaft position sensor
- Check throttle valve operation
- Inspect the wiring harness for damage
- Scan the ECU for errors and reflash if necessary