Turbo's in...but can't rev past 4grand!!!
#1
Turbo's in...but can't rev past 4grand!!!
Ok heres the deal, i just put in the greddy kit on my 98 civic hx. the problem im having is that when i rev, the motor won't rev past 4grand. its like a rev limiter, but all the way down at 4grand. My setup is: d16y5, greddy kit w/fmic/bov, 12:1 FMU, Walbro 255 intank, 280cc injectors, vafc, no cat.
i just change to fresh plugs and everything was fine, i was able to boost up to redline, but then after a few mins of driving, when i try to bring the revs up past 4g it will just bounce off like a rev limiter.
i also know that im running rich bc my egt gauge reads around 850 F at idle and the a/f meter is at full rich too. can running too rich cause this problem?
if anyone can help or needs this problem to be clearer please reply or email me kiddeng4@hotmail.com
thanks in advance!!!
i just change to fresh plugs and everything was fine, i was able to boost up to redline, but then after a few mins of driving, when i try to bring the revs up past 4g it will just bounce off like a rev limiter.
i also know that im running rich bc my egt gauge reads around 850 F at idle and the a/f meter is at full rich too. can running too rich cause this problem?
if anyone can help or needs this problem to be clearer please reply or email me kiddeng4@hotmail.com
thanks in advance!!!
#2
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Re: Turbo's in...but can't rev past 4grand!!! (KiddEng)
I had the same problem. Lean it out at the higher RPMs. Its so rich that it puts out the spark. It feels like a rev limiter. I just leaned it out it was fine. I have 310's and a VAFC.
#3
Re: Turbo's in...but can't rev past 4grand!!! (DC2R714)
aiight cool, i'll give it a try in the morning.
also im running no cat on obd2, so would this be a cause of the problem or is it just too rich?
did you get your ride tuned on a dyno with the afc?
[Modified by KiddEng, 10:20 PM 8/5/2002]
also im running no cat on obd2, so would this be a cause of the problem or is it just too rich?
did you get your ride tuned on a dyno with the afc?
[Modified by KiddEng, 10:20 PM 8/5/2002]
#5
Re: Turbo's in...but can't rev past 4grand!!! (On Point EK!!!!!!!!)
i do have a cel...but i think its cause im not running a cat, i tapped another hole in my bpipe and put it in there.
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Re: Turbo's in...but can't rev past 4grand!!! (LsTurbo91)
Its your map sensor for sure.....either your check valves arent working or youe missing link is broke.
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Re: Turbo's in...but can't rev past 4grand!!! (ninesecrx)
the code you are throwing is a too rich code. I had the same problem. I didn't use a dyno yet, I just kept leaning it out till it would go smoothly to 8000rpm. It will still run very rich, but it is a temporary solution until you get it on the dyno.
#10
Re: Turbo's in...but can't rev past 4grand!!! (DC2R714)
ok i leaned it out to about -30 at 4k...it worked for about 5 pulls and then aftdr that the problem came bakc again. i checked my CEL and i got a few codes, one of them being too rich/lean. the others are with my o2 sensor, vtec pressure valve, o2 heater and crank fluctuatoin sensor... so i guess i need to get new sensors and vtec valve? and lean it out some more?
also my missing link is working
[Modified by KiddEng, 3:05 PM 8/7/2002]
also my missing link is working
[Modified by KiddEng, 3:05 PM 8/7/2002]
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