I got my car chipped with APR and on the ride home i got a cel and as expected i had blown my stock dv and got it replaced with the new revision d but it also messed up my low pressure fuel sensor and that was also replaced. Got my car back from the dealership put it back in 93 and the next day the check engine light came back on. so a week later i switched back to stock mode took it to the dealer and left it there and this time they replaced my fuel filter, my low pressure fuel pump, and my turbo bypass control valve (not dv). After a weekend at the dealership i pick up my car put it back in 93 and the next day the cel came on again. so i cleared it and put the car in 91 to see if it would come on even if the car is not running as hard and it still did. the car is running perfectly but i don't want to mess up the engine. what else could possibly be wrong that im still getting a cel?