How do I fix code P0173?
How do I fix code P0173?
What repairs can fix the P0173 code?
- Replacing the mass air flow sensor.
- Replacing the fuel pressure regulator.
- Replacing the intake manifold gaskets.
- Repairing or replacing the engine air filter intake system.
- Replacing a vacuum line connected to the throttle body.
- Repairing a leaking brake booster.
How do you change a mass air flow sensor on a Mercedes?
How to replace the Mass Air Flow Sensor? Here is how Step by Step
- Remove the engine cover.
- Lift up the other side and remove the whole cover.
- Locate the Mass Air Flow Sensor, towards the back of the engine.
- Disconnect the wire harness plugged into the MAF.
- Remove the hose shows on the picture below.
How do I know if my Mercedes has malfunctioned?
Go to Mercedes > Select Model. Go to Auto Scan. Allow the scanner to go through all the systems and determine fault codes stored on each one. This will take a few minutes.
Why does my Mercedes say check engine?
The check engine light is constantly on: Your vehicle’s onboard diagnostic system has determined something is wrong and needs to be fixed. Although your vehicle may seem to be operating fine, it’s best to bring it in for service as soon as possible to prevent additional issues.
Can I drive my Mercedes with check engine light on?
It’s unsettling if the check engine light comes on while you’re driving. The check engine light indicates that something is wrong with your emissions system. Regardless, as long as the car isn’t acting abnormally, you’re fine to drive for the time being.
What is the Mercedes Benz fault code p1664?
Car is a 2005 C270 showing fault code P1664.Problem is when i Kick down,so much black smoke the road cannot be seen,on normal pull away it also smokes,then as the car picks up, it will clear. no problem with starting,although it has a Glow plug out,that i will fix this week.All filters have been re`placed.Any help i would be most grateful.
What does p0173 mean on a check engine light?
P0173 is a diagnostic trouble code (DTC) for “Fuel Trim Malfunction (Bank 2)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.
What causes a Mercedes Benz to have a p0170 code?
P0170 and P0173 Code Causes The most common cause of P0170 and P0173 on a Mercedes-Benz is a defective mass-airflow sensor. The MAF sensor gets dirty over time triggering the CEL and the two codes.
What does the PCM error code p0173 mean?
Error Code P0173 is set when the PCM has detected an anomaly on fuel (fuel trim) that is outside the range of the vehicle’s specifications. This can be a negative or positive trim. This code means there’s a malfunction in the computer’s control of the air to fuel ratio.