Hey Scotty, I have a 2011 Subaru WRX manual transmission with about 119,000 miles on it. I had the check engine light on, codes p0301, p0303, and p034 (camshaft sensor). I bought 2 new spark plugs and ignition coils, and now after I put them on, the check engine light is still on for the same thing, the car is running worse, and it stalls every single time I let go of the gas. Not sure what to do. Put the old parts back on because it was running better with them? Hope you can help, thanks
It might be the distributor
If you used aftermarket coils and different plugs it could cause that and if your going to do spark plugs you should replace them all because if you don’t you’ll end up with a similar problem with two cylinders firing better than the other 2. With ignition coils I always recommend going oem
