Bad idle and black smoke

[Lopez90]

Hello.

My 3b suddenly runs rough. Havent driven it since i bought it, but it ran smooth right before this happened. I revved high once after i installed a new exhaust and the car died when the rpm went down. Since then it has run rough with alot of black smoke from the exhaust.
Tried to plug out the MAF connector and it idle "better" actully. It runs from around 900-1000rpm on cold, and down to probalby 600rpm after awhile.
Cleaned MAF without success. Plugged out 1 and 1 injector and i can hear it run bad when i unplug all (1 at a time). So this indicated its not a injector/spark failure? Alot of black smoke when it idles a minute.

Thanks for any tips!

[Tyrone Stone]

do you have a turbine ? and tell me more details about your car

[Tractor Dave]

Has a hose popped off when you revved her?

[newsh]

Sounds like an air leak from a split hose.

[Lopez90]

Was a blown off hose. After driving 1,5hours to borrow a MAF, and a few hours trubleshooting it was a blown hose

[newsh]

Was a blown off hose. After driving 1,5hours to borrow a MAF, and a few hours trubleshooting it was a blown hose

Usually is! Glad you found it