SR Help Needed
SR Help Needed
Okay really bugging problem, cant figure it out1989 Nissan 240sx SR20DET redtop 5speed550cc injectors, walboro 255, gt25r .64, megan exhaust mani, o2housing, 3" exhaust, hard intake, z32, enthalpy tuned ecu, fmic, hks ssqvokay a few months ago i put my car down to get a lot of work done on it. got the new turbo and injectors and all done, and got rid of my safc for a enthalpy ecu. finnaly got to run the car for the first time, and it is real rich. smokes when u gas it, narrow band stays uber rich under wot, and put it on a dyno to get a a/f. starts at right under 11, and immediatly drops to under 10 where it wont even read on the dyno. i talked to scott and he said didnt think it was the tune making it rich, so trying to figure out what. also i think my bov is not opening some times? i hear this sound when i left off the gas coming through my intake, i unhooked my bov vacum and it makes the same sound. after driving it a while, it will just start working, like it wont chirp when i shift all the time, just some times, though i shift the same. i got my vacum lines like this, two outs on the t/b, one is T to fuel pressure regulator and boost gauge. the other is T wastegate and bov. stuff i tried: injectors not leaking at either big or small o-ring, all firing. no leaks i could tell (tried the carb cleaner method) plugs are fouled but not going to change them till i fix it. had one code a while ago (34 if i remember, it was knock sensor) but it was just the plug loose. no codes now 55. it will drive good, until under acceleration where it will buck in 1st and higher rpms 2nd. doesnt buck 3-4-5, but does bog after wot for a few seconds, then kinda clears out and pulls good. i can get pictures/video of anything, please let me know. really want to fix it. thank u for help, sorry its so long but i wanted to be specific.
Re: SR Help Needed (Gutling)
im not really sure where you should begin. but here is some advice if you ever get it working right and for anyone else planning on doing a lot of stuff at once. ONLY DO ONE MOD AT A TIME. that way you know what you change and there can only be one thing wrong at a time. im not saying do one thing then wait 2 weeks, but at any point possible put it all back together and start it up and fix any problems you can before moving on...