2017-10-10
Illuminated check engine light
Poor engine performance
Increased emissions
Reduced fuel economy
Damaged O2 sensor or sensor circuit
Loose or corroded electrical connections
Failed engine control module (ECM)
Exhaust leaks
Oxygen Sensor: This is one of the parts that fails very commonly. It measures the amount of oxygen to ensure proper combustion. Problems in the Oxygen Sensor lead to poor fuel economy
Replace the O2 sensor
Check and repair any damaged wiring or connections
Tighten or clean any loose or corroded electrical connections
Replace the engine control module (ECM) if necessary
Inspect and repair any exhaust leaks