Okay, i'll try to make a long story short. My fiance bought me a 1991 300zx n/a, about six weeks after we got it, it was towed to zfever in tampa. They did a two hour test to see what was wrong with my car. My compression test was good, all cylinders running at least 150. The engine had several oil leaks: cam seal, rear main seal, valve covers were leaking badly, everything was saturated with oil. Bad exhaust leaks. The transmission harness was installed wrong, it was resting on the right exhaust manifold. The engine was missing and running on 5 cylinders. The efi wiring harness was corroded. I got a new timing belt, bearings, water pump, thermostat, belts, and hoses. So they took the whole engine out and fixed everything, it cost my fiance 3,364.00. I've had the car back for about 2 weeks and it's running really rich, bas gas smell with black smoke coming from exhaust. The car was fine when we first got it back but now it also feels like it doesn't want "to go". The car will be going back to the shop in a couple of days but can anyone help me out with why it would be running so rich?!?!?

 

thank you for the replys! a fuel line was a little loose, which was causing the gas smell. there is still a slight exhaust leak also, i will be getting all new exhaust soon. thank god it wasn't anything major!!