Hey I have a 93 4cyl 5spd reg cab with about 14xxxx miles on her. On my way home from work today she stalled on me a half dozen times. It runs fine under gas but when I get off of it she stalls out. I don't have a tach in my truck but it seems to be reving very low, and everything felt very different like the brakes being very sensitive. She is also blowing darker smoke, not black but a dark grey. Any help would be highly appreciated.

Thanks

 

check the intake tube it could be cracked or have a hole it has to be sealed from the throttle body to the mass air sensor other wise it will not idle it will just die it will run fine when your on the gas but as soon as you let of it will die