I have been having an ongoing problem with my B16a, and I am not sure what it is. First off, let me say that I am having o2 problems...but I am not sure if that's causing what's going on or not..so I want to make sure. When cruising, and now I'm noticing that when taking off I get REALLY bad hesitation. I hear a lot of little 'sputters' out my exhaust, the the car doesn't want to go. If I just give it like 1/4 or 1/2 gas...it wont go..it will just sputter and continue at the same speed. If it go WOT though it will go but seems like it has lost power. It was just doing this going at like 55-65 in 4th or 5th..but it's doing it now when I take off in 1st/2nd. Will my o2's cause this? I am getting the new bungs welded in today, and wanted to take it to the track tonight now that I'm finally out of limp mode. I'm throwing the o2 code, and another code but I dont know what it is....It looks like code 2..but when I checked the manual, no code 2. I had a couple people tell me it might be code 22..vtec pressure switch? I just hooked up an LED to my vtec light so it lights up when VTEC hits. I gotta get this soddered, but will this cause the extreme hesitation? Also, I think I might be having backpressure problems. I have a straight test pipe from the DC Headers, and it goes back to a large *** Camaro muffler (too big...the guy did it b4 I got the car though and I'm regretting it now). What would this affect, and what downsides would I see from it? How can I diagnose it and will sticking a bomb tunable on there fix it? Any help would be appreciated guys, as I am anticipating the track tonight and a healthy running car.

JB

 

my car was stuttering and hesitating too until i found out that my ecu fuse was shot and i just replaced it and the car works better now..