Ok, not quite sure where to begin so bare with me, i have a 2002 WRX that has been modified quite a bit. When i bought the car from a friend the following mods were already done....
MRT Turbo Back Exhaust
MRT Top Mount Intercooler
GFB Blow Off
Lightened Fidenza Flywheel
I think that about covers what was done to the car before i got it. Didn't have any issues at all except for an occasional cel for catelyst deficency due to the catless downpipe. A few months down the road my stock turbo seized due to the precat in the up-pipe becomming dislodged and throwing shards into the turbo..... Here is where i started modding. I replaced the turbo with a slowboy racing 16G turbo, and i also gutted the precat in the up-pipe to prevent any more mishaps. Due to this upgrade i was getting multiple EGT cel's so there fore i removed the EGT sensor and bypassed it with a 2.2K resistor, solving that problem. I then upgraded the injectors to STI Pinks, a walbro fuel pump, Wideband O2 sensor as well as a Turbo XS Delta Piggy back unit. I had the car protuned shortly after. Since I have done those upgrades i am getting multiple CEL's for misfire on all cylinders. I was informed quite a few times that it was due to the lightened flywheel. Doesn't really make any sense due to the fact i never had a misfire code before i did my upgrades. Either way this brings me to my problem at the moment....I was on my way home yestersay when there was very loud POP, which i am assuming was really bad backfire. To make a long story short, i ended up having to have the car towed back home. When i got home i changed the spark plugs to the NGK iridium's. All four of the old plugs were black as can be and fouled out. When i started the car afterwards it is still running really rough, and it smells of gas really bad. I was thinking maybe the timing jumped, but i don't know for sure. If anyone has any ideas on anything please PM me and give me any advise that you may have, it would greatly be appreciated. Thanks,
Ok, just got done with a compression test. all four cylinders check out ok, between 140 and 150 on all four.