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Author Topic: ME7.5 high afr request  (Read 4661 times)
RallyeCAV606
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« on: June 15, 2019, 10:46:36 AM »

    I have an AGU engine with big turbo setup, 60 lbs Deka injectors and totally converted to BAM ecu.

I disable EGT sensor,VVT,N249,CAT,O2 and N75 and have Greddy boost control.

My problem is that at idle and partial load I have lambda requested less than 1 (0.99 idle and low as 0.95 some time at partial load)  even if I have LAMFA tuned to 1.1 at low loads.  Full load is OK

Also from VCDS I see that my specified load is high as 92% at idle and around 190% at partial load where actual load derived from VCDS is the same (around  60%) as Greddy shows (0 mbar boost) and around 30% at idle..

Also I can't find any corrections from EGT knock or coolant to take place.


What am I missing here. What I can made wrong and have this requested values.


Attached my tune till now . ECU is 8N0906018H  363013
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Blazius
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« Reply #1 on: June 15, 2019, 11:44:41 AM »

    I have an AGU engine with big turbo setup, 60 lbs Deka injectors and totally converted to BAM ecu.

I disable N75 and have Greddy boost control.


Why though?
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RallyeCAV606
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« Reply #2 on: June 15, 2019, 11:49:46 AM »

Big turbo with external wastegate. At first I had N75 with Tial external but after N75 fail I change to boost control.

But problem was there from start when N75 work ok with external wastegate
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nyet
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« Reply #3 on: June 15, 2019, 12:48:12 PM »

With all of that disabled, you're on your own.

Also, no logs.

Good luck.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! 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.
RallyeCAV606
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« Reply #4 on: June 15, 2019, 09:59:46 PM »

With all of that disabled, you're on your own.

Also, no logs.

Good luck.

  Please help what will be helpfull except from load and afr?
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BlackT
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« Reply #5 on: June 15, 2019, 10:14:59 PM »

Please use ME7 loger and make some logs. Without them, we can't help you
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RallyeCAV606
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« Reply #6 on: June 16, 2019, 09:59:29 AM »

Please use ME7 loger and make some logs. Without them, we can't help you

  Ok I can do logs but what logs will be helpfull for that?
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nyet
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« Reply #7 on: June 16, 2019, 10:26:37 AM »

Seriously?

https://s4wiki.com/wiki/Tuning#Logging_utilities

ME7L allows so many simultaneous vars its pointless to ask.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! 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.
adam-
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« Reply #8 on: June 17, 2019, 01:10:13 AM »

Fuck VCDS for logs, fuck people using BAM parts, fuck no N75 and fuck boost controllers.

No need for any of this tbh.
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RallyeCAV606
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« Reply #9 on: June 17, 2019, 02:27:59 AM »

 Attached is log from ME7logger.

Is clearly that I have lambda part protection butI can't find why!!

Also why I keep having load correct factor of coolant and air temp =1 .  As coolant is above 80  and air isn't that much musn't be =0??
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RallyeCAV606
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« Reply #10 on: June 17, 2019, 02:30:01 AM »

Attached is log from ME7logger.

Is clearly that I have lambda part protection butI can't find why!!

Also why I keep having load correct factor of coolant and air temp =1 .  As coolant is above 80  and air isn't that much musn't be =0??
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aef
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« Reply #11 on: June 17, 2019, 04:57:16 AM »

fix your egt sensor
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adam-
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« Reply #12 on: June 17, 2019, 05:19:40 AM »

fix your egt sensor
It's "disabled".
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nyet
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« Reply #13 on: June 17, 2019, 08:05:16 AM »

Back away from the "I am going to disable everything" approach, restore everything closer to stock, and fix things one by one, instead of dealing with a dozen unknowns you have zero experience with.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! 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.
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