Soo long story short, I've had my 02 ap1 for about 2 years now.. Never had any huge problems with it and never left me stranded. Recently I've been having bad misfire issues that I've yet to figure out over at least the 4 or 5 months its been like this. After changing my injectors, map sensor, spark plugs, got a valve adjustment with new valve cover gasket, coming around to testing my TPS and alternator I still haven't gotten a compression test or anything like that but I'm still seeing p0335, p0122, p1456, and all misfire codes, I now notice I have a faulty crank position sensor, I'm just stumbled on this car and about to just get rid of it the biggest money pit I've had to experience and I'm honestly very pissed about everything. I hardly ever drove the car hard, ever. Especially now, any help will be very appreciated. Leaning towards a compression test...

 

How did you "now notice"? New code....broken connector.The sensors are critical to when the engine fires. Most likely the root cause of all your issues......

Utah