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gman86
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« Reply #15 on: January 24, 2017, 01:07:42 PM »
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Yes.
Good luck.
Is that a "go figure it out and be the first to do it" or "it's been done, go find the info and try it"? I've yet to see anyone post other than resident IDA guru Basano but there's been nothing finished that I can see. |
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vwaudiguy
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« Reply #16 on: January 24, 2017, 01:50:08 PM »
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So on this, the MAP sensor can read above the max you can set LDRXN too, correct?
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
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prj
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« Reply #17 on: January 24, 2017, 03:18:02 PM »
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Basano ended up using a hack to get the request up. I will not elaborate on what hack, but we exchanged some e-mails with him on said topic.
The only correct way to do this is to rescale some pressure variables... It's not AS much aggro as ME7, it is also nothing LIKE ME7.
You have the FR, you consider yourself a pretty smart cookie, so get to it. I did when the time came - most of the work was done by 3 or 4 of us.
That said, most "pro" tuning companies run 3 bar MAP sensors and underscaled MAF's.
Not much to it. Underscale MAP, underscale altitude sensor to match, underscale MAF so ps_w is not retarded and adjust the throttle tables.
Adjust the pressure scaling in the MVB's to read the correct boost on VCDS if you are so inclined.
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« Last Edit: January 24, 2017, 03:20:11 PM by prj »
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littco
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« Reply #18 on: January 24, 2017, 03:47:00 PM »
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As above, driving via the ECUs PID. It's definitely a time. I've plotted boost in 4th, 5th and 6th and they're pretty much identical profiles. 6th gear seems to trigger it as it's held out for longer.
If its only happening in 6th gear and it is time dependant then increasing TLDOBAN and or TVLDOBSO should help the over boost. Wont help the 2550mb problem though. You'd have to go fixed n75 duty or scale |
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Rick
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« Reply #19 on: January 24, 2017, 04:28:52 PM »
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Have you checked your short term fuel trim when this happens?
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turbo944s2
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« Reply #20 on: February 05, 2017, 11:23:36 AM »
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Is that a "go figure it out and be the first to do it" or "it's been done, go find the info and try it"? I've yet to see anyone post other than resident IDA guru Basano but there's been nothing finished that I can see.
Gman86, I don't much about IDA, but I do know Allen Bradley PLCs, and Ladder logic diagrams. Let me know if there is anything I can do to help. |
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turbojohan
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« Reply #21 on: February 05, 2017, 11:35:25 AM »
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what boost does trigger error?
I've build a CDL DSG 4x4 in a ED30 golf and run openloop boost.
1.8 bar midrange and 1.6 highend and never had a limpmode.
3.9 sec 0/100km/h 450 hp.
Do you run open loop over KFLDRAPP?
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turbojohan
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« Reply #22 on: February 06, 2017, 03:34:38 AM »
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and check if boost makes it up to UDSVDMX, than you need to raise that one or put a 4 bar MAP sensor in there.
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gman86
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« Reply #23 on: February 06, 2017, 04:26:02 AM »
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what boost does trigger error?
I've build a CDL DSG 4x4 in a ED30 golf and run openloop boost.
1.8 bar midrange and 1.6 highend and never had a limpmode.
3.9 sec 0/100km/h 450 hp.
Do you run open loop over KFLDRAPP?
1.6bar is fine as well. There seems to be a deviation where it is happy. I've ran 1.7 and again was fine. If I could spend time on a dyno, I might be able to run similar power with boost slightly under the deviation threshold and make it up with ignition and cam timing |
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gman86
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« Reply #24 on: February 06, 2017, 04:32:05 AM »
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and check if boost makes it up to UDSVDMX, than you need to raise that one or put a 4 bar MAP sensor in there.
Yeah this hybrid will quite happily peg the MAP sensor right out the park. I run 70% duty cycle in the midrange where the turbo is keen and it still makes 2bar. |
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turbojohan
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« Reply #25 on: February 06, 2017, 05:14:26 AM »
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I'll try more boost next week and see if i get same problem.
Should be not too big problem to fix deviation error i think.
I'm on 95% DC and need stronger wastegate on EFR6758, but do like it that it can never peak too high with weak wastegate actuator.
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