nismo200sx16
04-20-2006, 10:50 PM
I am having trouble with my sr. it is missing under no load/ no boost. runs good under boost and air fuel is good under boost. every thing was fine until I put in my jim wolf ecu 740cc injectors and z32 maf. ecu is showing no codes. and I pressure tested the system to 30psi and no leaks. when driving if I get on the throttle slightly not spooling the turbo the car misses and bucks and sputters really bad. it is fine for a second and air fuel is good but then the fuel drops off and it starts acting up. fuel pressure is good. cant figure it out. timing is good tps is good. it just sucks cause it misses so bad I have to always go full throttle then let off then full throttle and let off constantly to keep it from missing and sputtering. I don't see why the fuel is falling off like it is. I also found that if I watch the air fuel and it starts to drop off if I lift and get back in it air fuel goes back up then falls off again. I have a plx m500 wide band so I can see every thing that's happening with the fuel. could a bad maf cause this. cause it was fine befor I installed the jim wolf ecu maf and injectors.