I got 92 HB D16Z6 engine build with low comp pistons and high temp berings I installed turbo on it, car start up good I got my 3k miles on befor I could step on it but when I did with a 7 psi boost it threw check engine light on and runs like crap, but when I shut off the engine then start it up agian check engine was gona then when it boost at 7 psi check engine light comes on, I havent installed mu FMU cause I got no wire diagram

I got 350cc injectors
2.5" exsast
big intercooler
IS IT BECAUSE OF FMU????

Im selling this car to for 3k OBO ITS IN WA