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d-9

Kms Works :d

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d-9

After a few teething problems, and a long phone call to MattSav, my KMS is working perfectly :blink:

 

The auto mapping is very sweet, you can see it adjusting the fueling and its noticably more driveable after about 15miles.

 

If anyones interested I'll write a guide about fitting and setting it up (its on the 106 at the moment, but will be on my mi16 eventually)

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TEKNOPUG

Did you have it hooked up to a laptop while it was auto-tuning?

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d-9

Yes, I dont know if it makes the correction map without a laptop plugged in, something i intend to test soon.

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Veero

Good stuff dude, many happy miles of bwaaaaaaaarping :blink:

 

Veero

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Jonmurgie

Well please you've got that working mate... a guide would be superb and I'm sure Matt would appreciate that as well :blink:

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M3Evo

Oh if only Emerald could self map I'd be laughing by now!

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Banjo

Guide guide guide!! :rolleyes:

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charlie_sav

the ecu will self map on it's own all the time which is the good bit, after 20 seconds the wideband sensor is ready so it will run your cold starts and will allways correct if you compensation maps are not quite right,

 

good to go into the system every now and again just see see if every thing is working right, airfilter not blocked fuel pump going down etc,

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Robsbc
Oh if only Emerald could self map I'd be laughing by now!

 

The functionality does exist on the new K3

Edited by Robsbc

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steendp

Self map and self map... Doesn't it just map after a predefined AFR? The KMS has no chance of knowing if AFR should be 11 or 12 at any given rpm.

 

Also, when you have found 'your' map, remember to set a treshold so that the KMS only can adjust within a 10% range (for example). That will prevent disaster in case of a faulty WB.

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petert
Self map and self map... Doesn't it just map after a predefined AFR? The KMS has no chance of knowing if AFR should be 11 or 12 at any given rpm.

 

Also, when you have found 'your' map, remember to set a treshold so that the KMS only can adjust within a 10% range (for example). That will prevent disaster in case of a faulty WB.

 

If it's anything like an Autronic, you set the desired target AFR for a particular load/RPM point, allowing full mapping in a 20 minute drive. This function doesn't come cheap however, at approx. AUS$2000 for the Autronic analyzer. They must be the bees knees however, as GMH bought 60 of them for "in house" monitoring.

http://www.autronic.com/page_files/autotune_feature.htm

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Mattsav

It has a AF target for every Speed & Load site.

 

You know roughly what you are looking for for most engines 14.7-15.4:1 on part throttle ramping up to 12.7-13:1 on full throttle.

 

If the ECU detects its trying to run at max or min allowed correction continuosly for 5 seconds then it assumes the lambda has failed and adds a preset amount to the base map. You can configure an AUX port to be used a management error light (shift light is probably best. If it stays on continuosly then the ECU has logged a fault with something).

 

Its best to set the max and min values to 50%.

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huckleberry

Self-map = self map of fueling right?

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smckeown

As the completion of my buikld is iminent I have been thinking of the KMS closed loop lambda control.

 

Am I right in thinking the benefits will be:

 

1 - great initial map before it's on the rollers. From day 1 it will have a good map, therefore no danger of any issues during run in period and onto the RR mapping sesion

 

2 - Will reduce RR time (therefore cost), as the maps are already filled, I assume the mapper would eek out the last x% then i'd take closed loop off and just run the dash display ?

 

Am I on the right track ?

 

Sean

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taffycrook

Self map my arse my ign ecu has been sat in my shed for a year now and i still get lost every time I cross the seven bridge!!

 

But I intend to fit it on my latest project and will also do a guide, it is this area that is critital to max engine performance fuel has a much larger window than ign, i will use a wide band lambda to jet the carbs before the rolling road session.

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jaredboy

Did you ever have the time to write a guide about fitting and setting it up the KMS ecu?

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