Power Loss

[GolfCart]

Well I'm new to this site and the world of Volkswagon, and it's started off a little shakey. I just picked up a 89 Golf, put 300 miles on it and it ran perfect, than I got in it, it started fine, but has no power. It will idle okay, but when I step on the gas it hesitates real bad and blows a lot of black smoke out the exhaust untill it gets to 3000 rpm, than it runs good again, same when it is in drive, it reaches 3000 and takes off. I think its dumping way to much fuel in, but am not sure. I replaced the mass air flow sensor, the plugs and wires, with no luck. all cylnders are firing, the car has 99,000 miles on it.
Thank you

[SupermanwOOt]

black smoke is a bad sign, usually means the car is burning oil. Could be a blown headgasket, but black smoke is very very bad.

[Fourt1thirty]

Originally Posted by SupermanwOOt

black smoke is a bad sign, usually means the car is burning oil. Could be a blown headgasket, but black smoke is very very bad.

Blue smoke means the car is burning oil, black smoke means the car is rich.

I'd start with checking fuel pressure, the throttle switches and the coolant temp sensor.

[SupermanwOOt]

sometimes its hard to tell the difference, but either way its a problem

[GolfCart]

so I disconnected the temp sensor and started the car, ran pretty good, let it idle for a while and it cleaned itself out, the black smoke went a way and I took it for a ride up my road, ran like new again, checked the plugs after and they were burning clean, so, now I have a new sensor on order for tomarrow, and it only makes sense I guess that it should run with a new one in place, thanks a lot guys.