I am fairly certain that MB retained the 25"WC restriction limit on the diesels as the trigger for a filter service or 4 years. This is used to monitor filter restriction and will trigger a service if and when the filters need replacement.įor those who have no background in engineering this may come as a shock but the color of your airfilters has no bearing on how they perform. Why is it people insist on changing out perfecly functioning air filters, OCD?įWIW the engine monitors actual filter restriction using a manometer mounted on the MAF sensor.
You really need to follow the service guidelines for your engine which are in your maintenance manual that came with your vehicle. The exhaust color is usually darker when running rich. A rich condition is when there is not enough air relative to the fuel in the air/fuel mixture. Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues Your Sonic may run rich or lean when idling, or it may also idle erratically. A rich condition is when there is not enough air relative to the fuel in the air/fuel mixture. When the mass airflow sensor has gone bad, you’ll definitely feel it. If you used an oiled filter element you just trashed the MAF sensor.I sure hope this isnt the case. Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues Your Silverado may run rich or lean when idling, or it may also idle erratically. You need to stop messing around with the engine (which is exactly what you are doing) because your monkeying around is NOT providing any benefit to your motor!
#What causes mass air flow sensor problems install
If you need to replace it with a new one, install the new sensor instead of the old MAF sensor. Pull out the air flow sensor and clean it properly. Remove the connector with the harness of the sensor. Turn off the engine and let it cool down if you’ve been driving. You just installed TWO NEW air filters that FILTER LESS EFFICIENTLY than the ONES YOU JUST TOOK OUT! Resetting the Mass Air Flow Sensor by Idling the Engine. Click to expand.Why are you messing around with the air filters when you only have 23,000 miles on them?