Engine 86 GT no start/stall

nweber

New Member
Jul 28, 2026
1
0
1
Canada
I have an 86 GT that i swapped a motor and trans from another 86 GT into and it was running okay before and now it barely tries to start. swapped computers from other car same vr1 computer. car will fire right away and then stall right away unburnt fuel is coming out of the exhaust and car has spark could a bad tfi do this everything is from the other car except the fuel system and i just changed to filter and the fuel pump is working good. 99% sure there is no vacuum leak, if someone could help me out that would be great. 86 GT cobra T-5 5.0 HO
 
Lots of ground to cover, first thing I'd do monitor spark, wait, did the car run and drive good after engine swap and start acting up after awhile or it ain't been right since swap?
Give up a little more info,.hell we love stories....and pics of this pony too
Oh....smell the oil on the dipstick, prolly smells fuelish, need to change it...