P1270 MERCURY Possible Causes
- Wheel spin (water, ice, mud, and snow)
- Excessive engine RPM at idle
- Driving the vehicle at high speed
How is the P1270 MERCURY code repair performed?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check engine light on (or service engine soon warning light)
P1270 MERCURY Meaning
Engine RPM/Vehicle Speed Limiter Indicates that the vehicle was used in a way that resulted in exceeding a calibrated limit of the engine or vehicle. The engine speed and vehicle speed are continuously monitored by the Powertrain Control Module (PCM). The P1270 code is set when the RPM or speed goes out of the calibrated range.