JeanAwt
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« on: April 23, 2024, 05:00:12 AM »
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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
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A4 B5 avant 1.8T 2000 NO QUATTRO
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aef
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« Reply #1 on: April 23, 2024, 05:47:40 AM »
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glad you provided a log
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_nameless
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« Reply #2 on: April 23, 2024, 05:53:52 AM »
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its new bt logs
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Giving your mom a tuneup
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JeanAwt
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« Reply #3 on: April 23, 2024, 09:22:12 AM »
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sorry, yes I suspect it but what variables exactly? thank you
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A4 B5 avant 1.8T 2000 NO QUATTRO
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JeanAwt
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« Reply #4 on: April 30, 2024, 04:04:33 AM »
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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
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A4 B5 avant 1.8T 2000 NO QUATTRO
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aef
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« Reply #5 on: April 30, 2024, 04:52:09 AM »
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What was your last modification to create this idle bounce?
injectors 0280158117 ?
post fuel trims block 32 please.
post tvub aswell please
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JeanAwt
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« Reply #6 on: April 30, 2024, 10:24:20 AM »
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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%
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A4 B5 avant 1.8T 2000 NO QUATTRO
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JeanAwt
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« Reply #7 on: April 30, 2024, 10:32:09 AM »
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On my way to work I did this. This looks crap...forced to start from 0 because I still haven't used kline directly.
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A4 B5 avant 1.8T 2000 NO QUATTRO
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JeanAwt
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« Reply #8 on: April 30, 2024, 11:59:53 PM »
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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
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JeanAwt
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« Reply #10 on: May 02, 2024, 04:49:56 AM »
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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
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JeanAwt
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« Reply #11 on: May 03, 2024, 09:20:07 AM »
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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!
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JeanAwt
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« Reply #12 on: May 07, 2024, 09:10:02 AM »
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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.
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A4 B5 avant 1.8T 2000 NO QUATTRO
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aef
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« Reply #13 on: May 07, 2024, 10:59:04 PM »
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Which one? maybe provide a part number or picture.
"which regulates the vacuum" is confusing for everyone reading this in the future
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JeanAwt
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« Reply #14 on: May 07, 2024, 11:31:42 PM »
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OEM :035 103 245 A
or available in aluminum at creation motorsport AL0098
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A4 B5 avant 1.8T 2000 NO QUATTRO
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