Hey guys have a 89 TTA I recently purchased. Car ran great for a few weeks after purchase, but the other day I was out driving it I pulled up to a light and the car started to idle noticeably rougher. I took off and the car was very under powered ( borderline not drive able) noticeable black smoke out the exhaust and all the plugs are black. I replaced o2 and map sensor to no avail. I've tried searching the forums but couldn't come up with an answer. The car only has 50k on it.
All help is appreciated.
All help is appreciated.
