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VTEC/FUEL CUT BUG
Posted: Sun May 10, 2009 2:47 pm
by Bugermass
Theres a bug in the vtec routine that I think is whats affecting peoples fuel cut settings. Basically the TPS threshold for VTEC doesn't seem to actually work to disenguage vtec, so what happens is if you decel above VTEC, it will stay on and you'll have a difference load while deceling causing fuelcut to go on and off. A quick fix for this problem until calvin gets the bug fixed is to increase vtec MIN LOAD from the default of 98 to like 300 or so.. This will cause vtec to turn off while deceling like TPS SHOULD be .. Actually I've been playing with it the last few days and have found a crap load of bugs.. I'm suggesting to calvin to go back one release for everyone until these things are worked out, cause older release has less problems.
Posted: Sun May 10, 2009 5:00 pm
by civic4g
that's only on rom 64?
Posted: Sun May 10, 2009 5:19 pm
by Bugermass
No 63/64. I think even the older versions had this as well.
Posted: Mon May 11, 2009 7:24 am
by calvin
soo we want to deactivated vtec based on mbar and tps and rpm? remember that stock only rpm is important.
Posted: Mon May 11, 2009 8:48 am
by Bugermass
yeah, it should be, theres no reason to be in VTEC at 25% throttle. The TPS threshold should work both to activate and de activate. Then there will be no issues any longer witih decel fuel cut being out of load range at higher RPMs..
Posted: Mon May 11, 2009 11:24 am
by civic4g
Bugermass wrote:theres no reason to be in VTEC at 25% throttle.
I hope I didn't miss understood what Bugermass was trying to say, but mechanically there is a reason, at higher engine speeds (7000+) if vtec it's not engaged the LMA by it self will not respond quickly enough to mantain the middle rocker arm in touch with the cam. This leads to a rattle noise from head and also shouldn't be very healthy for the rocker arms and cams. Make all the necessary changes to the routine but i'm just trying to assure that this new routine will not disable vtec at high rpm
Posted: Mon May 11, 2009 10:55 pm
by Bugermass
hmmm.. i see what your saying, I've never really had an issue with the mechanical side of it, but it makes since how it could cause an issue.. I'll half to get some other peoples insight on this..
Posted: Wed May 13, 2009 11:41 am
by calvin
i think the rpm is most important. Maybe we need a mbar fuelcut vs rpm. Higher rpm less vacumn higher fuelcut.
Posted: Wed May 13, 2009 8:53 pm
by Bugermass
or just a fuel cut mabr value thats only active above vtec.. that will probably do the trick
Posted: Thu May 14, 2009 6:09 am
by calvin
working on it boss. See i email i send. could it be related to that?
Re:
Posted: Tue Mar 15, 2022 11:11 am
by qa2643316
civic4g wrote: ↑Sun May 10, 2009 5:00 pm
that's only on rom 64?
https://ativadors.com/serato-dj-pro-crackeado/