So i have searched all over the web for at least ONE forum about my problem and have found nothing so i decided to start my own. I was getting desperate ad searching similar issues with EVO's and other tuners.
Queso this is whats happening, RANDOMLY one morning i decided to take out my car out (since i rarely drive it anymore because i have spent so much money on the build i like it to sit pretty in the garage).
When trying to start my car it would crank and crank and suddenly **BANG!!!** loud pop out the exhaust. Now, i have been fabricating my own exhaust parts too and as of now its just the down pipe, so when i heard that im pretty sure i crapped my pants because it sounded like a shotgun went off under my A**. The fuel pump primes i can hear it, so i dont think its fuel related. i decided not to crank it anymore because my neighbors think i like to shoot guns in my garage now. I am so confused. From what i have read so far i have narrowed it down to a few ideas,
A. Timing some how got out of wack? idk how tho since it was driving just fine when i parked it.
B. Coil packs are bad? weak spark but definitely getting fuel.
C. Something with the ignition? but i think im going to rule that one out.
D. Reason for the big bang is because im getting WAY WAY to much fuel the i can ask for.
Has anyone ever seen or heard anything like this?
Engine: EJ25 block and heads,
CP forged pistons
And all sorts of goodies that i get to lazy to type out.
Im really hoping one of my fellow AWD's can help me figure this one out.
Any ideas at this point will very helpful before i have it towed.