P 0119 Mpg Access
: Low coolant levels, a stuck-open thermostat, or contaminated (rusty) coolant can interfere with accurate readings. Troubleshooting and Repair
Because the ECT sensor provides critical data for the Powertrain Control Module (PCM) to adjust the air-fuel ratio and ignition timing, a failure often leads to (lower MPG). If the sensor incorrectly signals that the engine is cold, the PCM will pump in excess fuel, leading to inefficient combustion. Other common symptoms include: Check Engine Light illumination. P 0119 mpg
: The sensor itself may be defective or worn out. : Low coolant levels, a stuck-open thermostat, or
or a heater that won't blow warm air. Rough Idling or difficulty starting the car when warm. : Low coolant levels
: Damaged, corroded, or loose wiring and connectors are frequent culprits for "intermittent" codes.