mustangfan90

I have a 90 5.0 mustang GT. I have a stock bottom end with AFR 185cc heads, E303 cam, BBK SSI intake with 1.6 roller rockers. Ok I was coming from the drag strip the other day and I pulled over to wait on a friend and when I did my gauge messed up and I think that m engine MAY or may not have ran hot. Well I sat there for a minute and then I cut my car off not knowing how long it would be before my friend got there. When I started it back it sounded like it was bogging out and when I drove it fuel smoke pours out of the exhaust pipe and it used 3 gallons of gas in 10 miles. I have changed the MAF sensor the MAP sensor the oxygen sensors the fuel presssure regulator the CTP sensor and the computer nothing is helping could I have ran it hot and cracked and head or intake or any of these gaskets. I have never seen an end run hot and drink this much fuel before. PLEASE HELP

rmodel65

what color is the smoke? white is steam, grey is fuel, blue is oil

mustangfan90

Seems white at idle not sure I know its grey when I rev it up and you can smell the fuel

92redlx

Could your fuel regulator be screwed up?

mustangfan90

Just put a new one on it

rmodel65

maybe u have a frozen fuel injector? it could be dumping fuel

angcobra

Do you have a fuel pressure gauge, what is it reading?

mustangfan90

How can you tell if its hung open and answering the cobra questions I dont have one so I dont know

mustangfan90

Would cracked heads or intake or busted head gaskets or intake gasket cause this?

angcobra

Good chance the new one is failed. Get you a gauge and see what the fuel pressure is.
When you crank the car, do you have to hold on the floor to crank? If so, this is a sign of fuel pressure too high. Holding on the floor during starting cuts the injectors off.