CEL's & Trouble Codes

[creedog]

I am constantly getting the following codes/CEL and reading the trouble codes using my Predator.

P0300 - Random Misfire Detected

P0302 - Cylinder 2 Misfire

P0308 - Cylinder 8 Misfire

P0316 - Misfire detected on startup (First 1000 revolutions)

What is actually going on and what can be done about it?

If this helps at all, my Mod list -

Diablo Predator tuner - dyno tuned
Steeda 85mm CAI
4.10 gears
Steeda Underdrive pullies
Ford shortie coated headers
Magnaflow X-pipe
Flowmaster axle-back

All of these items have been professionally installed. I am going to take the car into the dealership soon but I would like to figure out what is going on before hand.

Any help would be greatly appreciated!
Thanks

 

[spdbrake]

I am constantly getting the following codes/CEL and reading the trouble codes using my Predator.

P0300 - Random Misfire Detected

P0302 - Cylinder 2 Misfire

P0308 - Cylinder 8 Misfire

P0316 - Misfire detected on startup (First 1000 revolutions)

What is actually going on and what can be done about it?

If this helps at all, my Mod list -

Diablo Predator tuner - dyno tuned
Steeda 85mm CAI
4.10 gears
Steeda Underdrive pullies
Ford shortie coated headers
Magnaflow X-pipe
Flowmaster axle-back

All of these items have been professionally installed. I am going to take the car into the dealership soon but I would like to figure out what is going on before hand.

Any help would be greatly appreciated!
Thanks

A TSB for miss-fire came out last year.

http://www.mustangforums.com/recalls-and-tsbs/make_FORD/model_MUSTANG/year_2005/id_031404/TSB.htm

 

[tsrek]

You have shorted out your coil packs?

I washed the engine compartment of my ford Taurus and shorted out 2 coil packs, it cost me 200$ to replace them.

Did u wash your engine compartment?

also Im not sure if Mustangs have coil packs but I think they do.

they are solid-state units on top of each spark plug, not like the old style single coils.

all your code errors point to shorted coil packs .


also I see you had headers installed, these could also expose the Plug wires to excessive heat and cause a short in the wires causing the missfire. have them checked.