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D3 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again

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  #1  
Old 22nd January 2009, 09:56 PM
A8 Doc A8 Doc is offline
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Location: North Yorkshire
Posts: 616
Default Tuning the 4.2 Litre Petrol ECU

You can download Lemmiwinks from Here!!

Again you need a VAGCOM serial compatible cable although you do not use VAGCOM!

You can tune various parts of the ECU from here. This is NOT a remap, just altering various settings to achieve a more smoother ride.

I can help with the settings, though this is at your own risk and meant for people who already under the principals of tuning. Therefore this is purely a Lemmiwinks guide.

Channel 6 learning adaptation by making it faster can vastly improve performance, though will use more fuel. Simply as the car will respond quicker to a spirited drive, not like a wafty big cruiser....

I suggest full monitoring of knock sensors etc. whilst tuning the rest of the car!!!

Ch01 : Idle Speed Offset
Adjust idle RPM level
- Higher number: increase idle rpm
- Lower number: decrease idle rpm

Ch02 : Fuel Tweak (Accel Pump); Increasing Loads
-This channel adjusts a fuel enrichment under load
-Modulates Throttle Response

Ch03 : Fuel Tweak (Accel Pump); Decreasing Loads
-This channel adjusts a fuel enrichment term coming off the gas or decelerating.

Ch04 : Start Up Fuel Enrich
Amount of fuel on any start ups?
- Higher number: enrich the mix
- Lower number: lean out the mix

Ch05 : Warm Up fuel Enrich
Amount of fuel on start ups E.G. on the first start in the morning?
- Higher number: enrich the mix
- Lower number: lean out the mix

Ch06 : Lambda Regulation
Controls how fast ECU adapts:
- Higher number: faster adaptation
- Lower number: slower adaptation

Ch07 : Additive Offset To Speed Limiter
Controls speed limiter in increments ok 1km/hr

Ch08 : Secondary Fuel Tweak
It adjust gain on the injectors responce
- Higher number will increase the injector responce (smooths the ride)
- Lower number will decrease injector responce (decrease backfires)

Ch09 : Ignition Timing Offset
Controls timing in steps of 0.75 degrees, all RPM range is altered
- Higher number advances timing
- Lower number retards timing

Ch10 : Primary Fuel Tweak
Controls fueling on run, ussually change multiplicative fuel trims
- Higher number enrich the mix
- Lower number lean out the mix

Ch11 : Unused
Unused

Ch12 : SEL Scaling (Turbo Cars Only)
Adjust fueling maps according to boost settings
- Higher number increase injection period for higher boost
- Lower number decrease injection period for lower boost

Ch13 : OFF OFF
Unused

Ch14 : Idle Torque Additive Offset
Controls engine load at idle
- Higher numbers: spec load at idle is increased
- Lower numbers: spec load at idle is decreased

Last edited by A8 Doc; 22nd January 2009 at 10:00 PM.
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  #2  
Old 17th June 2010, 03:26 PM
ulfilias ulfilias is offline
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Join Date: Apr 2009
Location: Peterborough, Cambs, UK
Posts: 874
Default

Hi There,

Just came accross this page while searching for "lean" due to mixture too lean errors (just cleaned maf and need to reset and see what happens). However i got sidetracked and started googling and found other newer software

http://www.unitronic-chipped.com/mai...i_setting.html

&

http://www.custom-code.co.uk/index.p...electcat&cat=1

Both can save to disc, which means you can back-up your settings. Also an interesting imoboliser disable (!!!) features !

Alas my net top and vagcom cable are at home - CC also claims to work with any cable !

cya,
Lee
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Old 22nd June 2010, 10:20 AM
A8 Doc A8 Doc is offline
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Join Date: Jan 2009
Location: North Yorkshire
Posts: 616
Default

Yeah Unisettings works with the newer VAGCOM cables mate Hex-Can etc.

Never tried the CC one. Good find!
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  #4  
Old 8th August 2019, 06:29 PM
JanKaj JanKaj is offline
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Join Date: Aug 2019
Location: Denmark
Posts: 3
Default Lemmiwinks program

Lemmiwinks to be found here:
https://rehmann.co/blog/audi-vw-lemm...ware-download/
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