AZ 3/S Tech
for the past couple of days every time i boost beyond 10-12 psi my car goes ape-shit. i just got it back from the shop (after 4 months and 2 head jobs-they screwed up the first one) and the problem could be anything. i thaught that it may ne the faulty EGR temp sending crazy messages to the ECU but i replaced that earlier today and it still happened. This is what happens .... in 2 nd or 3 rd gear when im getting on it and boost above 10-12 psi the car violently jerks and the check engine light comes on and stays on for about 3 seconds or more. The light goes off and the car still runs normal. The jerk feels like dumping the clutch too hard or slamming on the brakes or something.