P1218 – Injection Pump Calibration Circuit

P1218 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1218 Possible Causes

Powertrain Control Module (PCM) currently does not have a resistor value,Powertrain Control Module (PCM) is unable to read resistor value

P1218 Description

The Powertrain Control Module (PCM) uses a calibrated resistor internally in the Injection Pump to determine fuel rates. the resistor value is stored in the PCM memory. If the PCM memory has been disturbed or replaced the PCM will relearn the resistor value on the next ignition cycle. The code is set when the key ON or engine running and PCM does not detects a correct current valid resistor value, or it determined that it was unable to read the current resistor value.