supra_si Posted May 25, 2009 Share Posted May 25, 2009 Right well i have experienced fuel cut again or what i think it was, 4000rpm at 120 mph. (Was just testing to see if it was a one off before) Is this the right speed and rev range for fuel cut to occur? Im starting to think that i dont have a FCD. Quote Link to comment Share on other sites More sharing options...
ClaireRZ-S Posted May 25, 2009 Share Posted May 25, 2009 did you install a FCD before? if so you might want to check if its wired to the ECU correctly or yes you may not have one Quote Link to comment Share on other sites More sharing options...
tony tt Posted May 25, 2009 Share Posted May 25, 2009 Your fcd might need reset mate there normally fitted in the passenger footwell ive a greddy one and it can be set to kick in at different levels if you have one it could just need tweaked. i was gettin fuel cut till i went full de-cat after that there wasnt a problem. Quote Link to comment Share on other sites More sharing options...
jayssupra Posted May 25, 2009 Share Posted May 25, 2009 Have you removed any of your cats, do you have a boost gauge Quote Link to comment Share on other sites More sharing options...
supra_si Posted May 25, 2009 Author Share Posted May 25, 2009 yeh i have my second cat removed. im gonna have a look now in the passenger footwell to see if one has been fitted prior to me fitting it, Thing is though ive had over cough 130 before decatting Quote Link to comment Share on other sites More sharing options...
tony tt Posted May 25, 2009 Share Posted May 25, 2009 Might be an option to go full de-cat with rr it stopped my fuel cut problem. My fuel cut didnt raise its head for nearly a year with the 1st cat still in then out the blue it gave fuel cut what boost you running with the first cat in place? Quote Link to comment Share on other sites More sharing options...
supra_si Posted May 25, 2009 Author Share Posted May 25, 2009 stock boost, i havent touched the engine in that way. nor have a boost gauge yet. Quote Link to comment Share on other sites More sharing options...
jayssupra Posted May 25, 2009 Share Posted May 25, 2009 Fuel cut only happens when your boost goes over 0.8-0.9, when you had both cats in your boost would never get more than this, now you have removed a cat boost will rise and you get fuel cut, it has nothing to do with speed, you could get 160 out of your car if you had a long road and took your time Quote Link to comment Share on other sites More sharing options...
tony tt Posted May 25, 2009 Share Posted May 25, 2009 hmm.....It is the right speed and rev range for it to occur have a poke about mate and see if there is one fitted first process of elimination and all that. Quote Link to comment Share on other sites More sharing options...
supra_si Posted May 25, 2009 Author Share Posted May 25, 2009 Quote Link to comment Share on other sites More sharing options...
supra_si Posted May 25, 2009 Author Share Posted May 25, 2009 would currently having no rear silencer play a part as well ?? Quote Link to comment Share on other sites More sharing options...
tony tt Posted May 25, 2009 Share Posted May 25, 2009 would currently having no rear silencer play a part as well ?? Shouldnt do mate i dont think. Quote Link to comment Share on other sites More sharing options...
supra_si Posted May 25, 2009 Author Share Posted May 25, 2009 had a quick browse in the footwell, there was a plastic cover hiding the ecu. looks like theres no fcd fitted :-( Quote Link to comment Share on other sites More sharing options...
tony tt Posted May 25, 2009 Share Posted May 25, 2009 Do you get fuel cut without an fcd? Does that mean its another problem mate? Maybe a duff coil making it splutter under stress maybe... Quote Link to comment Share on other sites More sharing options...
Steviekid Posted May 25, 2009 Share Posted May 25, 2009 would currently having no rear silencer play a part as well ?? It might. I think it was Getrag on here that still had both cats but had a free flowing cat back exhaust and he was getting boost spike until he fitted a restrictor ring (along with the two cats). Quote Link to comment Share on other sites More sharing options...
TopgunTT Posted May 29, 2009 Share Posted May 29, 2009 Any news on resolving this? Quote Link to comment Share on other sites More sharing options...
Ian C Posted May 29, 2009 Share Posted May 29, 2009 Sounds a lot more like a speed limiter to me. -Ian Quote Link to comment Share on other sites More sharing options...
supra_si Posted May 29, 2009 Author Share Posted May 29, 2009 how would i go around sorting the limiter out?? im getting my back box welded back on tomorrow fingers crossed Quote Link to comment Share on other sites More sharing options...
TopgunTT Posted May 30, 2009 Share Posted May 30, 2009 Wouldn't a FCD just stop this? Quote Link to comment Share on other sites More sharing options...
supra_si Posted May 30, 2009 Author Share Posted May 30, 2009 Had my back box welded back on with some stainless pipe as well, sounds lush nice, purrs like a kitten and the engines a lot smoother pulling away now. not taken it upto max velocity yet but will give it ago soon. im looking around for a FCD to fit, are they hard to fit?? im no electrician Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.