What causes a service engine light on a Subaru Legacy?

What causes a service engine light on a Subaru Legacy?

Whenever the engine is put under a heavy load it’ll feel like it is running out of gas. It’s very similar to the symptoms of a bad fuel filter. Service Engine Light – Often, this is the only symptom of the Subaru Legacy P0420 code. There are many things that can cause the P0420 trouble code in your Legacy.

What makes a Subaru Legacy Run Out of gas?

Typically, they’ll idle ok and drive normal under a light load. Whenever the engine is put under a heavy load it’ll feel like it is running out of gas. It’s very similar to the symptoms of a bad fuel filter. Service Engine Light – Often, this is the only symptom of the Subaru Legacy P0420 code.

What does OBDII trouble code mean on Subaru Legacy?

P0420 is a OBDII trouble code. The code technically stands for: Your Legacy has at least two oxygen sensors, one before and after the catalytic converter. Among the many jobs that oxygen sensors have is they have to measure the emissions levels coming in and out of the converter.

What causes the P0420 trouble code on a Subaru Legacy?

There are many things that can cause the P0420 trouble code in your Legacy. Here are the most common ones. Oxygen Sensor – The P0420 codes is thrown when the oxygen sensors on both sides of the exhaust have very similar readings. When the oxygen sensor is bad, it can cause a false reading and trigger the code.

What kind of car is a 2003 Subaru Legacy?

The 2003 Subaru Legacy Wagon is offered in a variety of trim levels and configurations, offering buyers plenty of choice when it comes to this excellent handling, severe weather driving machine. The Legacy Wagon is offered in many different trims, including the L, the L Special Edition, the GT,…

What are the trims of a Subaru Legacy wagon?

The Legacy Wagon is offered in many different trims, including the L, the L Special Edition, the GT, the Outback and the Outback L.L. Bean Edition and the top-of-the-line VDC which features Vehicle Dynamic Control for added handling.

What causes a Subaru AWD to turn full lock?

Mine does it if it is turned full and on pavement and it is a 2009 XT atuo (4EAT) with VDC. Just wondering what year and type of transmission you have. It could be simply the clutches involved in the AWD engaging when turning at full lock.

What are the symptoms of a bad Subaru differential?

Click to expand… 1. wheel bearing – start to listen for the sound to be coming from a particular corner. checking for “play” isn’t very effective for diagnosing subaru wheel bearings. The second symptom I noticed is that when I hit a patch of snow or a bump, the car would lurch slightly, like it was about to go into a spin.