I'm getting code P0173 and P0115. Are they related?
Will P0115 go away if the car warms up????
Resetting the computer so the MIL light goes out keeps failing.
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2001 Mercedes-Benz C320 Question: check engine light stays on
Answer #1patrick mannion from Greg Solow's Engine Room, January 08, 2011, 18:52Master
P0115 is a bad coolant temperature sensor or stuck open thermostat, P0173 is a fuel trim malfunction issue. Check this website
Replyhpm, January 09, 2011, 12:29Rookie
could both codes have something to do with pre cat O2 sensor and O2 sensor heater?
Is there a connection?