 somethigns rong 5sfte, blaaa craig needs help |
 Jan 30, 2006 - 3:28 PM
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 Enthusiast  Joined Jul 16, '04 From Los Angeles Currently Offline Reputation: 8 (100%)  |
When im runing 7 psi everything is fine. but as soon as get up to like 10 11 psi my eninge gets all wacked out.
at 10 11 psi it makes a really bad sputtering sound, jerks around and loses power. Is this the 2 bar map sensor doing that boost cut, is it cutting fuel? i have an mbc on it because before the turbo was only doing like 4 psi. I had to take the cap off the nipple on the second pipe of the waste gate to get it to do 7 psi. Now i have it caped off with the mbc set at 7 and have problems with it when i get up int he 10 psi range. This post has been edited by urbandork: Jan 30, 2006 - 3:32 PM |
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Jan 31, 2006 - 3:59 AM
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Enthusiast Joined Oct 17, '04 From St Louis, MO Currently Offline Reputation: 0 (0%) |
if the CEL is coming on it's fuel cut for sure...
the 5sfe ecu will throw a CEL when it sees too much voltage from teh map sensor... when this disappears the CEL will go off the 3sgte ecu on the other hand with throw a CEL when it sees too much voltagefrom the map sensor, but it will keep the CEL on until you turn off and turn on your car again...and untill you do that it will kill power to the turbo vacuum switching valve locking you in limp mode which is 5-7psi if the CEL is blinking on then it's gotta be fuel cut... time for some sort of FCD , be aware though, that if you do bypass fuel cut (fcd, zener diode, different safc settings ...etc) your fuel will definately be affected above 10psi (where the FCD is active) because your fuel is based directly on your map reading -nuke -------------------- 2005 MB C200 Kompressor- K&N, Apexi WS2 Catback, DIY Voltage stabilizer, Intrax Springs, H&R RR swaybar, VDO Boost Gauge @ 6psi, Greddy L7 plugs, +0 Rear tires
To Do: E-manage Ultimate tuned up to 12psi |
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Jan 31, 2006 - 4:25 AM
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 Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
QUOTE(NuclearHappineS @ Jan 31, 2006 - 8:59 AM) [snapback]386894[/snapback] if the CEL is coming on it's fuel cut for sure... the 5sfe ecu will throw a CEL when it sees too much voltage from teh map sensor... when this disappears the CEL will go off the 3sgte ecu on the other hand with throw a CEL when it sees too much voltagefrom the map sensor, but it will keep the CEL on until you turn off and turn on your car again...and untill you do that it will kill power to the turbo vacuum switching valve locking you in limp mode which is 5-7psi if the CEL is blinking on then it's gotta be fuel cut... time for some sort of FCD , be aware though, that if you do bypass fuel cut (fcd, zener diode, different safc settings ...etc) your fuel will definately be affected above 10psi (where the FCD is active) because your fuel is based directly on your map reading -nuke Since he's running the SAFC2, he should be able to upgrade the injectors another step and then reduce the MAP sensor voltage across the board, to keep a/f on (and stay below the fuel cut votage), correct? -Doc This post has been edited by Dr_Tweak: Jan 31, 2006 - 4:26 AM -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
Posts in this topic
urbandork somethigns rong 5sfte Jan 30, 2006 - 3:28 PM
x_itchy_b_x are u running the proper Gap on the plugs? Jan 30, 2006 - 3:37 PM urbandork yup .30 right? thats what i set it at when i put t... Jan 30, 2006 - 3:45 PM lagos sounds like detonation
what injectors and piggy b... Jan 30, 2006 - 3:49 PM urbandork safc2 and ngk i forget the number but they are cop... Jan 30, 2006 - 4:00 PM lagos what injectors are u running?...not spark plugs... Jan 30, 2006 - 4:04 PM urbandork im running 42 pound bosch injectors so about 441cc... Jan 30, 2006 - 5:03 PM NuclearHappineS if you hit fuel cut you should see the Check engin... Jan 30, 2006 - 5:18 PM urbandork ngk plugs bkr7es11
255 lph fuel pump
I think my ... Jan 30, 2006 - 6:21 PM presure2 urban, is it RPM dependant or boost dependant?
wha... Jan 30, 2006 - 7:27 PM x_itchy_b_x u have u btm at 3?! u only need to set it at .... Jan 30, 2006 - 7:46 PM
urbandork QUOTE(x_itchy_b_x @ Jan 31, 2006 - 12... Jan 30, 2006 - 8:39 PM presure2 you shouldnt be hitting fuel cut @ 10-11psi, ive h... Jan 31, 2006 - 9:34 AM urbandork QUOTE(presure2 @ Jan 31, 2006 - 2:34... Jan 31, 2006 - 11:43 AM dlx742 it sound ur leaning out, ive had this happen befor... Feb 4, 2006 - 12:12 AM presure2 craig, you said on AIM you had to ADD fuel up top?... Feb 4, 2006 - 8:51 AM urbandork manny. although im adding that much fuel most of t... Feb 4, 2006 - 12:28 PM presure2 im not concerned with what your gauge reads.
if yo... Feb 4, 2006 - 2:49 PM rjbibeau sounds like a fuel filter issue. your car is a 95 ... Feb 5, 2006 - 2:13 PM urbandork well i got the new fuel filter in and also changed... Feb 10, 2006 - 5:38 PM presure2 yes, it will.
that should be in your intercooler p... Feb 10, 2006 - 6:53 PM CheesyLobster QUOTE(presure2 @ Feb 10, 2006 - 3:53... Feb 10, 2006 - 8:08 PM urbandork QUOTE(CheesyLobster @ Feb 11, 2006 - 1... Feb 10, 2006 - 11:43 PM |
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