Hey, I'd really appreciate if anyone could help me understand what's going on with my 1996 Subaru Sportswagon (boxer 2.0L)? Essentially, it starts perfectly and will run perfectly while cold although as soon as it starts getting warm, the engine loses its power and the car idles really rough. This will last until the engine is properly warm. A few times I've been driving and it's been so bad before that the car has actually stalled and won't start again for about 10-20 seconds.
I've asked a few people and have had a range of answers like "ignition, exhaust flow sensor, coolant temperature sensor, bad plugs/leads, choke flooding the engine, wrong fuel-air mixture.
While it could be one or a couple of those things, I'd love to know why the car is having trouble during the engine warming process and at no other time.
If someone could give me a hand it'd be much appreciated!
Cheers,
Bobby