Can I bypass MAF sensor?
There is a sensor on the air intake called the mass air flow sensor. This sensor calculates how much air to mix with the fuel. You can bypass the MAF sensor, and allow the O2 sensor to calculate how much air is needed.
Which way does MAF go?
The MAF sensor must be mounted with the arrow pointing towards the throttle body.
What are symptoms of a bad mass airflow sensor?
Here are some of the most common symptoms of a faulty mass airflow sensor:
- The engine is very hard to start or turn over.
- The engine stalls shortly after starting.
- The engine hesitates or drags while under load or idle.
- Hesitation and jerking during acceleration.
- The engine hiccups.
- Excessively rich or lean idling.
Where do you mount a MAF sensor?
The MAF sensor should be mounted on the top 180-degrees of the intake tube.
How to replace the mass air flow sensor on a Subaru?
Replacing the MAF sensor on a Subaru is very easy and takes less than 30 minutes. OEM or Denso sensor recommended. Park your Subaru and turn off the ignition. Set the parking brakes. Pull the hood release to open the hood. Locate Subaru mass airflow sensor to the engine air filter housing.
Can a bad Subaru MAF sensor trigger a check engine code?
A bad Subaru MAF sensor can trigger various check engine codes such as P0300 or code for the O2 sensor, air volume or something else. While it is possible to clean the MAF sensor, cleaning the MAF sensor does not always work. If you decide to clean the MAF sensor make sure to use MAF Sensor Cleaner .
Are there air flow sensors on a Subaru Outback?
The MAF and O2 sensors have been replaced on a Subaru Outback but the engine is rough when idling and tends to improve when past 1200 rpm. What could the problem be?
How often should I Clean my Subaru MAF sensor?
A hot wire burn-off cleaning circuit is used on some sensors, but as far as I know the Subaru MAF Sensor does not have this feature. Anyway, this DIY is so cheap and easy it’s safer to do it every 3k or 7k miles than have to replace a burnt out MAF Sensor (about $150).