Ken-1
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« Reply #15 on: May 24, 2014, 11:32:36 AM »
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When I did a return B6, I just modified FKKVS. Nothing else.
Was this the correct way to do it? Probably not. Does it work well? Yes.
Thanks for the reply. Yes I guess there is no reason for over engineering here. I logged a bit us injector on time versus STFT and it seems to be able to get corrected quite well with that. |
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prj
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« Reply #16 on: May 25, 2014, 12:48:56 AM »
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Uhm…. there is a separate map with ps_w as axis for fuel correction on returnless ECU's…
It's a very good idea to turn that off, as otherwise I can't see it working quite right.
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Ken-1
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« Reply #17 on: May 25, 2014, 01:43:30 AM »
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Uhm…. there is a separate map with ps_w as axis for fuel correction on returnless ECU's…
It's a very good idea to turn that off, as otherwise I can't see it working quite right.
Ok. I looked in Funktionsrahmen but finding the name for that does not seem so easy. The only map that appears time after time for me is FRLFSDP? |
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tjwasiak
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« Reply #18 on: May 25, 2014, 02:04:38 AM »
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What is the point in converting to return- type fuel system?
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Ken-1
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« Reply #19 on: May 25, 2014, 03:13:49 AM »
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What is the point in converting to return- type fuel system?
The returnless system does not support high fuel flow through the injectors, I guess the only benefit with the returnless is cost, less parts and weight. If you intend to increase power quite much a system with return is needed. |
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tjwasiak
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« Reply #20 on: May 25, 2014, 03:19:12 AM »
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Is it not the problem of low flow fuel pump? Is it not possible to replace the pump leaving the stock pressure regulating part?
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Ken-1
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« Reply #21 on: May 25, 2014, 03:27:24 AM »
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Is it not the problem of low flow fuel pump? Is it not possible to replace the pump leaving the stock pressure regulating part?
Yes, that helps. But with a returnless fuel system the same pump that can support ~500 hp with a fuel system that has return maybe only can support ~400 hp. It depends on you injector size, fuel and power target if the returnless system will suffice or not. With etanol and large injectors fuel system with return is the way to go. |
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tjwasiak
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« Reply #22 on: May 25, 2014, 03:44:36 AM »
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AFAIK transversely mounted 1.8T even equipped with newest ME7.5 variants had return- type fuel system so maybe those binaries could be helpfull for you to find a difference in tuning?
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prj
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« Reply #23 on: May 26, 2014, 02:56:51 PM »
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Ok. I looked in Funktionsrahmen but finding the name for that does not seem so easy. The only map that appears time after time for me is FRLFSDP? Bingo. |
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ddillenger
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« Reply #24 on: May 26, 2014, 07:59:30 PM »
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Sorry, I set that to all 1's in my file  Bad info on my part. Apologies. |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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stuklr
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« Reply #25 on: January 07, 2015, 09:57:30 PM »
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Does anyone have the locations for the Codeword CWPKAPP and FRLFSDP in this version of the 518AK? I am considering the switch to a return type system to play with E85. Thanks!
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ddillenger
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« Reply #26 on: January 08, 2015, 03:12:54 AM »
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Does anyone have the locations for the Codeword CWPKAPP and FRLFSDP in this version of the 518AK? I am considering the switch to a return type system to play with E85. Thanks!
CWPKAPP: 19298 FRLFSDP: 1F9F0 (axis right before it.) |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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stuklr
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« Reply #27 on: January 08, 2015, 07:43:03 AM »
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You are my hero as usual Daz
Thx
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99pwr
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« Reply #28 on: February 15, 2015, 01:42:00 PM »
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CWPKAPP: 19298
FRLFSDP: 1F9F0 (axis right before it.)
CWPKAPP is not at 1929A adress in this file? |
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mihail171994
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« Reply #29 on: May 25, 2020, 03:00:41 PM »
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Can anyone help me in changing the return software? I mounted the return ramp and pressure regulator on an A4 BFB and the car sometimes emits smoke at idle. I tried to understand what is written here but I don't really understand.
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