06 Mustang GT w/Kenne Bell blower, corsa cat back and some suspension. 93 fox sedan 331 NA Stroker
New to the forum and looking for some help. I have an 06 Mustang GT w/Kenne Bell 2.6L. I have 2 issues I do not know if related I need help on. 1st: I have had an occasional on going issue when I start the car in the am, (car cold), the car starts, struggles then dies. The car will not start unless I hold the gas pedal down, cutting off the injectors then it starts, blows white smoke “fuel” out the exhaust then it runs fine. I can go several weeks to a month or so without it happening, then out of the blue it happens. This could happen for a day or two then it’s fine again for a while. I have replaced plugs, coils, and even a new Kenne Bell tune. Does this sound like an injector leaking fuel into the cylinder causing a flood issue? If I have to cut the injectors off to start and it starts then blows fuel out the exhaust? Issue 2: while driving the other day my engine light started flashing. The car started to struggle when accelerating then in less than a minute the flashing stopped and the car was fine. I pulled a code P0304 cylinder 4 misfire. Doing some searching I found the main cause could be a plug, coil or injector among other things. I checked the injector and hear it working. But of course it would if the car is running fine now. The plugs are about a year old, and I replaced the coils also last year with MSD’s. I did see a thread here where no one is a fan of them? I have not tried yet to move the coil to another cylinder. Car is running fine now. I was thinking about changing the injectors since I can do it and costis relatively inexpensive. Car has 98,000 miles. What do you guys think? Thanks for any suggestions.