Supercharged Mustang Cobra Running Rough

[Natty54]

Re: Supercharged Mustang Cobra Running Rough

Since you drained the tank and stirred up whatever crap might be in there, could you have plugged up your new fuel filter?

this is very possible or something is in one of the lines. If it ran good before, then you did something, and then it doesn't run

[stefan]

Re: Supercharged Mustang Cobra Running Rough

Since you drained the tank and stirred up whatever crap might be in there, could you have plugged up your new fuel filter?

[Geobmx4life]

Re: Supercharged Mustang Cobra Running Rough

I don't know a ton about SC's...but I would lean towards vacuum leak somewhere.

[Lo)2enz0]

Re: Supercharged Mustang Cobra Running Rough

Kuji who made the aftermarket PCM?

[kujiwara]

Hey guys I have an issue with my mustang, I know it's Eurodrivers but this just seem to be the most convienient place for me to ask at the moment.
The car has an aftermarket ecu on it so obd2 scanning doesn't work.
The car won't idle, I have to give it a little gas to idle
Car runs very rough even revved up
Boost gauge does not show any vacuum being produced
Supercharger over boosts stock 13psi went up to 20psi and I got scared and don't want to test driving it until problem is fixed
Changed fuel filter, plugs
Made sure coil packs work properly
Car does not run maf sensor
New gas all old gas drained because car was parked for 7 months
Idled fine for 5min and drove fine for 1min then car wouldn't idle and ran very rough(ps this was before I changed anything)

I'm leaning towards a vacuum leak but we tried to spray brake cleaner around the hoses and nothing happened, but then we also tried spraying into the intake and did not make a difference

I don't have the car with me right now so I couldn't do any testing but I will need the car as soon as I go back to Calgary, so right now I need to gather ideas from you guys to diagnose the car. No ford jokes please thanks guys!