2002 Subaru WRX Repair Question
Topics covered: Fuel pressure, Fuel pump, Sensor.
Mileage: 165,000 miles.
Mileage: 165,000 miles.
Asked on April 15, 2012
My automatic will not accelerate
Will not accelerate seems like it is hesitating as if its not getting fuel i had half a tank i did get codes po420 and po 171 but my cel is always on. it was so bad i had to leave it sit
Asked by trevorgladfelterAnswer
Replied on April 15, 2012
check the fuel pressure . if it is ok, you may have a clogged cat converter
Roy
Replied on May 1, 2012
Check mass air flow for dust on sensor wires. Especially if you are running a KnN filter or similar oiled filter... Subaru fuel pumps rarely go bad
Replied on May 1, 2012
Just spray it off with carb cleaner and plug it in.
Replied on May 1, 2012
Note also check for torn air boot or disconnected air tubes after mass air flow...