how to set decel fuel cut?

red_zone · Post by **red_zone** » Wed Apr 01, 2009 5:53 pm

hello, I tried your sets, but I'm not getting any result follows more or less equally. I'm desperate to the subject because I have tried a lot of things and not get anything. there is something else I can try? thanks

racepak · Post by **racepak** » Wed Apr 01, 2009 7:34 pm

ok, here are my cal and logs, the logs dosnt pinpoint my exact problam, but you ahould be able to see the bouncy rpm's. every time time i reach 2000 rpm and let off the gas a bit the car starts to cut, also, i have a problam of bouncing idle, as you can see in the logs,

Post by **Gaskleppie** » Thu Apr 02, 2009 6:05 am

red_zone wrote:hello, I tried your sets, but I'm not getting any result follows more or less equally. I'm desperate to the subject because I have tried a lot of things and not get anything. there is something else I can try? thanks

you can try to shut fuel cut off by setting the vacuum to 70mbar. Maybe there is something els wrong. Setting fuelcut off can light up some things. @racepack: Lower the min tps to 1% and set the mbar to 210. Maybe even set the rpm at 2300 or something like that.

red_zone · Post by **red_zone** » Thu Apr 02, 2009 6:14 am

Gaskleppie wrote:
red_zone wrote:hello, I tried your sets, but I'm not getting any result follows more or less equally. I'm desperate to the subject because I have tried a lot of things and not get anything. there is something else I can try? thanks
you can try to shut fuel cut off by setting the vacuum to 70mbar. Maybe there is something els wrong. Setting fuelcut off can light up some things.

hello, I've tried this several times but it seems that this option does not work properly because sometimes I turn on the indicator of fuell cut in the screen while I have this option selected

Post by **Gaskleppie** » Thu Apr 02, 2009 6:27 am

do not use the check box to shut it of. Set the mbar to 70 to shut it off. Should work.

Post by **calvin** » Thu Apr 02, 2009 7:42 am

guys normal fuelcut light also comes on with a rev limit or lean protect or something similar where rev limit is used.

red_zone · Post by **red_zone** » Thu Apr 02, 2009 6:14 pm

darkb16a1 wrote:I have exactly the same problem as racepak. Drive out - WOT - watch the mbar values from approx 6K RPM up to 2500. Values are somewhere between 160-210 mbar. Set the fuelcut to 220-230, TPS 1%. When RPMs are around 3000, fuelcut stops working and car starts to jump. So I raise the fuelcut baro value a bit, but then when I'm very gentle on the throttle, fuelcut somes in play as the baro values are below minimum level even though I am at 5-6% of TPS and trying to drive slowly in the city. Calvin, I really think the best way how to solve this is to completely disable the MBAR value for fuelcut - for example by a checkbox. Then the only thing that would define if the ECU has to do a fuelcut would be a TPS value and minimum RPM. I was also using Crome before, also no problem and honestly, since the ride is so bumpy, I am using Crome right now even though I hate it comparing to Ectune.

I have been reading back what has been written here to see if I had left some details, my problem is the same as this, I have tried everything you have told me, putting the 75 mbr fuelcut the car does not change, the problem remains .he made to observe the test and around 3200 rpm on the fuelcut is lost even if the tps 0

Post by **Gaskleppie** » Fri Apr 03, 2009 1:22 am

I still think that your mbar settings are too low. See this pic from your log. The mbar goes up when the revs go down.

red_zone · Post by **red_zone** » Fri Apr 03, 2009 6:45 am

ok, I will try to put 300mbr if the tps routine is correct,should not have fuelcut,while not meeting the 0% tps.thank you for your help

red_zone · Post by **red_zone** » Mon Apr 06, 2009 10:49 am

hello, I've been testing these days, I tried to make the cut in 280mbr, but there has been no luck, still the same bug, only now some 2800 crashes rpm.i reinstall my ectune, in case something in the program bad, I have updated to version r9, and now I can not put the selection of tps to 0 because the option fuelcutstops working.look this log, I'm desperate to get it running smooth under the 3000rpm.thnks

greasemonkee · Post by **greasemonkee** » Mon Apr 06, 2009 11:54 am

From an amateur point of view, looks like manifold pressure is dependent on AFR. On fuel cut resume, manifold pressure goes down and gradually up again as it leans out resulting in the cyclic action. Add 50% fuel to column 1 and post a log/cal

red_zone · Post by **red_zone** » Mon Apr 06, 2009 4:03 pm

ok, it proved, but I do not understand why being with the conditions I set, the system stops working momentarily.

red_zone · Post by **red_zone** » Mon Apr 06, 2009 5:18 pm

ok, it proved, but I do not understand why being with the conditions I set, the system stops working momentarily.

Post by **Gaskleppie** » Tue Apr 07, 2009 1:11 am

I think I know why you have such problems with fuelcut. If you look at the begin or end of your log, you see a bit of idle at standstill. This car pulls only 550mbar of vacuum@idle! Check the cam timing, air leak, something like that. You got that map value @ idle at least below 400mbar. If its higher, you got ITB's, extreme high cams, or you have a problem somewhere....

red_zone · Post by **red_zone** » Tue Apr 07, 2009 1:22 pm

hello,my car have mounted skunk2 pro1 cams.the cams are at 98Âº /in,105Âº/ex.this is the skunk2 setings.with crome pro had no such problems, the car is much better at all ranges with ectune, but at this point there is a bug, it may be my fault or failure of the program, but everything started to work with ectune. mechanically the car is not because I have nothing else, I just changed the software, it is true what you say, the car generates little vacuum at idle, but under normal skunk2 is because the overlap of these cams is high, but as I said crome but I have not had these problems during use. anyway, look at the cal, in the moments where the fuelcut comes and goes, does not exceed the value set in the configuration on my mbr fuelcut.is strange, but always does the same rpm