2017-10-10
Inspect the exhaust heat exchanger for any signs of damage or leaks and repair or replace if necessary.
Check the exhaust bypass valve for any obstruction or malfunction and clear or repair as needed.
Clean and lubricate the exhaust bypass valve to ensure smooth operation.
Adjust the settings or controls of the exhaust bypass valve to correct any misalignment or incorrect positioning.
Clogged or restricted exhaust system
Faulty or malfunctioning exhaust heat exchanger
Stuck open exhaust bypass valve
Incorrect air/fuel mixture
Faulty oxygen sensor
Decreased engine performance or power
Loud or unusual exhaust noise
Fuel efficiency decreases
Engine misfires or stalls
Increased exhaust emissions