Misfire while at constant RPM

[b00St3DgST]

I have been having a misfire problem this past week and cant seem to figure it out. I have a 6 bolt in my 95, but i never was getting the misfire before until a week or two ago. I just got new BPR6ES's and gapped them to .028 and that didnt fix it. My plug wires are fairly new, about 6 months. I did a boost leak test and i cant get my piping to hold more than 7 PSI. I didn't hear any leaks at all, but seems like i can hear the compressed air leaking down through the exhaust. It's a weird sound and i cant really explain it. Could i just have a major boost leak somewhere and not hear it? The problem started after i put urethane mounts in so my guess is that something got vibrated too hard and loosened itself.

My CEL is on for a ISC contoller, but nothing else. I got it checked at autozone. I have no datalogger nor DSMLink so this is about all the information i can give.

Any help would be appreciated so i can sell the car for what its worth with no problems.Thanks alot. Shawn

 

[vampire101]

I was having the same problems. My Fule pressure regulator was dieing. Hopefully that helps.