P1270 Mercury Engine RPM Or Speed Limiter Reached

Possible causes

– Wheel slippage (water, ice, mud and snow)
– Excessive engine RPM in neutral
– Vehicle drive at a high rate of speed

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1270 Mercury Description

Engine RPM/Vehicle Speed Limiter Indicates the vehicle has been operated in a manner which caused the engine or vehicle to exceed a calibration limit. The engine rpm and vehicle speed are continuously monitored by the Powertrain Control Module (PCM). The P1270 Mercury code is set when the rpm or speed fall out of calibrated range.