NefMoto

Noob Zone => Noob Questions => Topic started by: JeanAwt on April 23, 2024, 05:00:12 AM



Title: idle bounced 1.8t
Post by: JeanAwt on April 23, 2024, 05:00:12 AM
my idle bounced especially when hot. I have 550cc injectors, fuel e85, 3' dowpipe, no leaks, recent DV and lamba, sai, pcv, evap off remove physically and in file. I don't know where to look anymore. I have k03s instead of k03 should I retouch the air map?? I don't know where to look anymore. thanks


Title: Re: idle bounced 1.8t
Post by: aef on April 23, 2024, 05:47:40 AM
glad you provided a log


Title: Re: idle bounced 1.8t
Post by: _nameless on April 23, 2024, 05:53:52 AM
its new bt logs


Title: Re: idle bounced 1.8t
Post by: JeanAwt on April 23, 2024, 09:22:12 AM
sorry, yes I suspect it but what variables exactly? thank you


Title: Re: idle bounced 1.8t
Post by: JeanAwt on April 30, 2024, 04:04:33 AM
hello, it bounced a little less because I touched a bit of fkkvs. but it still bounced. are there other variables needed? there is too much fuel? thanks and sorry it's my first log


Title: Re: idle bounced 1.8t
Post by: aef on April 30, 2024, 04:52:09 AM
What was your last modification to create this idle bounce?
injectors 0280158117 ?

post fuel trims block 32 please.
post tvub aswell please


Title: Re: idle bounced 1.8t
Post by: JeanAwt on April 30, 2024, 10:24:20 AM
yes 0280158117 has 4 bars or 58psi

tvub:
8v 3.21
10v 1.61
12v1.15
14v0.75
16v0.54

fuel e85 it has always more or less bounced back with e85
last modification deletion pcv physically and in file
and I moved to K03s. it has a large induction hose, dowpipe 63.5 large cast iron collector .sai evap delete .ltft approximately -5%


Title: Re: idle bounced 1.8t
Post by: JeanAwt on April 30, 2024, 10:32:09 AM
On my way to work I did this. This looks crap...forced to start from 0 because I still haven't used kline directly.


Title: Re: idle bounced 1.8t
Post by: JeanAwt on April 30, 2024, 11:59:53 PM
Does anything shock you in this log? I see 1.1bar clearly, the maf values ​​are low, right? and yes hard cut small player at 5800. I remind you it's only a hobby I have no claim to know how to settle it. but I would like to learn how it works


Title: Re: idle bounced 1.8t
Post by: aef on May 02, 2024, 12:06:42 AM
why logging wot when your problem is idle?

try these tvub:
http://nefariousmotorsports.com/forum/index.php?topic=6670.msg67239#msg67239

if engine is warm clear errors and let the car idle some minutes. create a log of this idle run.
provide stft and ltft after some minutes of idle. (vcds screenshot)




Title: Re: idle bounced 1.8t
Post by: JeanAwt on May 02, 2024, 04:49:56 AM
hi, I tested wot because I wonder if the problem doesn't come from elsewhere. probe 02, however recent. I tested the tvub I ran for 15min...same bounce 760/840rpm group 32 0 adaptation 33 bounce -13/-18 at 1,500/1,540v I will do other tests when I have more time. thank you


Title: Re: idle bounced 1.8t
Post by: JeanAwt on May 03, 2024, 09:20:07 AM
once again I didn't look hard enough. I think I finally understood the problem. It's not my file, it's hardware. Let me explain: for some time now I have had oil coming through the exhaust only after idling for a while, so I imagine through valve seals. This morning I disconnected my dv vacuum hose on the collector and the miracle idled stable no more rebounds.too much depression...like an idiot I removed all the PVC from the bowl as well as the flap! I just have a pipe that takes the upper lower crankcase and direct catch can and outside. I think that all my problems come from here the small valve which prevents too much depression at idle, it is connected to the low engine breather and regulates the depression!


Title: Re: idle bounced 1.8t
Post by: JeanAwt on May 07, 2024, 09:10:02 AM
to confirm, it was indeed because of the small plastic valve which regulates the vacuum at idle. my idle is finally stable and no more smoke.


Title: Re: idle bounced 1.8t
Post by: aef on May 07, 2024, 10:59:04 PM
Which one? maybe provide a part number or picture.

"which regulates the vacuum" is confusing for everyone reading this in the future


Title: Re: idle bounced 1.8t
Post by: JeanAwt on May 07, 2024, 11:31:42 PM
OEM :035 103 245 A
or available in aluminum at creation motorsport AL0098


Title: Re: idle bounced 1.8t
Post by: _nameless on May 09, 2024, 11:30:36 PM
OEM :035 103 245 A
or available in aluminum at creation motorsport AL0098
good find


Title: Re: idle bounced 1.8t
Post by: JeanAwt on July 13, 2024, 09:55:51 PM
the end of the story....in addition to the PVC there were 2 valve seals which were wandering around. since then I have reassembled an AJQ instead of AWT with supertech valve seals and it is a brand new b5