2017-10-10
Increased fuel consumption
Illuminated check engine light
Failed emissions test
Poor engine performance
Faulty or contaminated oxygen sensor
Damaged or corroded wiring in the circuit
Loose or poor electrical connections
Failed engine control module (ECM)
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 oxygen 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