Help please! ME 3.8.3 maf & injectors.

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Topic: Help please! ME 3.8.3 maf & injectors. (Read 5977 times)

checcoa3

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	Help please! ME 3.8.3 maf & injectors. « on: July 24, 2013, 04:24:20 AM »

Hello guys,

I am writing because I need your help. I'd be very grateful.

Should I tune my ME 3.8.3 with the following changes:

-maf housing with 72mm id
-350cc injectors.

I currently have a k04-022.

I have read a lot of information and I did many tests but I can not tune the engine.
the engine idle is too lean

I have a AEM wideband probe to check the stoichiometric ratio.

I tweaked the following curves:

- Grundanpassungsfaktor 0
- Linearisierung der Heißfilmspannung
- Spannungskorrektur

any information is helpful!
can you help me tune.


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checcoa3

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	Re: Help please! ME 3.8.3 maf & injectors. « Reply #1 on: July 24, 2013, 04:25:39 AM »

Thank you to all.


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aef

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	Re: Help please! ME 3.8.3 maf & injectors. « Reply #2 on: July 24, 2013, 06:27:47 AM »

please upload stock and tweaked file


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checcoa3

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	Re: Help please! ME 3.8.3 maf & injectors. « Reply #3 on: July 24, 2013, 10:08:37 AM »

I have done many tests and I was going crazy to delete the map.

however, the change I made is as follows:

- Grundanpassungsfaktor 0, set to value 77 (original is 128)
- Linearisierung der Heißfilmspannung, I interpolated from -7% to +35%


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checcoa3

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	Re: Help please! ME 3.8.3 maf & injectors. « Reply #4 on: July 26, 2013, 12:28:47 PM »

I ask you guys for help.

continue to do tests ...
the only way to lean a little is the lambda ...


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Roader55

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	Re: Help please! ME 3.8.3 maf & injectors. « Reply #5 on: August 04, 2013, 05:47:43 AM »

you mean the lambda map? where you get with test?


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checcoa3

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	Re: Help please! ME 3.8.3 maf & injectors. « Reply #6 on: August 04, 2013, 12:08:36 PM »

you mean that.
I'm now a limiter to about 12:1 stoichiometric.


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jokerr9

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	Re: Help please! ME 3.8.3 maf & injectors. « Reply #7 on: August 31, 2013, 02:36:48 AM »

And what about FKKVS - Correction factor for fuel supply system(from me 7.5)?
I can't find it in me 3.8.3
I'm going to replace my 260cc(AGU) injectors with 317cc(AUQ).
I've changed
1. Fueling constant: Grundanpassungsfaktor 0
2. Start fuel inj time(ms): Startgrundmenge (2 1x1 maps) - copied from AUQ
3. Spannungskorrektur - copied from AUQ

And should I change Spannungskorrektur if I'll just install 4bar fpr with 260cc? Can't find specs for these injectors(bosch 0280150464) wth 4bar pressure.

Thanks.


« Last Edit: August 31, 2013, 02:49:52 AM by jokerr9 »	Logged

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