Can anone help?! I have a 2001 bug eye WRX which hesitates under acceleration! I have had it hooked up to a diagnostic computer at a subaru dealer and no fault codes are showing. I have changed the air flow meter andair pressure meter located on the throttle body (This item did throw up a fault code once) but i still suffer with hesitation argh!!!!!!!!

 

have you changed out the fuel filter? how many miles on the car? run a can of injector cleaner through it?

 

Thanx for that info!

The car has done 64K. The day i posted this my ECU light came on so i took it to a friend who works for Subaru. The fault code was P034 i believe (Camshaft sensor) I bought a new sensor and now the car runs like new!!! I have so much more power and no hesitation. I know a few people have had the same problem and wondered if this could be the answer as it has gone on for months with no fault code.

 

spark plugs maybe ??

 

Not the spark plugs, the car is sorted it was the camshaft sensor all along