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fuel cut below tps % not working

Posted: Tue Nov 23, 2010 11:46 pm
by non-vtec
hey calvin can you check to see the fuel cut below TPS? i know it used to work in previous versions i remember messing with it months ago. it seems to not work at all. i can set it at 1% all the way to 5% and fuel cut will not come on.

Posted: Thu Nov 25, 2010 3:14 pm
by Bugermass
it will but ALL conditions must be met, not JUST tps... try setting your vaccume threshold higher.. I ususally end up with it in the 220-240 range to be completely clear of spikes in manifold pressure during decel.

Posted: Sat Nov 27, 2010 10:22 pm
by non-vtec
will try that out....but i remember in previous versions (cant remember which one) i was able to set it by percentage only. i found it worked better that way.

Posted: Mon Nov 29, 2010 7:13 am
by Vtec6000
As bugermass said all conditions must be met. If you don't hit your set mbar target then regardless of tps setting it won't fuel cut. Do a datalog while deaccelerating and see what mbar reading your getting that will tell you what value you need to set mbar fuel cut at.

Posted: Tue Nov 30, 2010 1:34 am
by Bugermass
I usually just cruise at med RPM and lightest throttle possible to maintain speed, then lok at my mbar, then set the mbar threshold below that by like 50 or so. Works every time.

Posted: Fri Dec 10, 2010 2:08 am
by dbsharp
unless things have changed, fuel cut below tps seems to do nothing. I have seen fuel cut work while tps was not meeting the conditions I set. It would be nice to have fuel cut below a tps threshold regardless of manifold pressure. I know it would help me out.

Posted: Sat Dec 11, 2010 1:57 am
by Bugermass
I dunno.. I havn't had any issues with fuel cut working properly.