VEMS injector settings Siemens 630cc

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VEMS injector settings Siemens 630cc

Postby ChrisAudi80 » Thu Aug 25, 2016 10:12 am

Hi all,

Been searching a lot about this and cannot find the information. I have two spec sheets for the Siemens Deka 630cc injectors, but cannot make out how to use the information. What do I put here as indicated in the picture? Is it correct already?
Attachments
Injector settings 630cc.jpg
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96 S6 auto
95 80Q AEB VEMS
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Re: VEMS injector settings Siemens 630cc

Postby UrSobsessed » Thu Aug 25, 2016 9:02 pm

This is what mine are. They are working well, but might need some tweaks on your car. HTH.
Image

Req_fuel is: 4.6ms.
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Re: VEMS injector settings Siemens 630cc

Postby ChrisAudi80 » Fri Aug 26, 2016 9:29 am

UrSobsessed wrote:This is what mine are. They are working well, but might need some tweaks on your car. HTH.
Image

Req_fuel is: 4.6ms.

:ty:

I run req_fuel 5.9 due to E85. How did you get to these numbers? I used the simplified table in VEMS with the numbers sheet from Siemens but the motor ran junk.
I used the attached values for offset, but I guess I needed to multiply by some factor.
Attachments
FI114961cs.jpg
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96 S6 auto
95 80Q AEB VEMS
ChrisAudi80
 
Posts: 715
Joined: Mar 2, 2013
Location: Bangkok, Thailand

Re: VEMS injector settings Siemens 630cc

Postby UrSobsessed » Sat Aug 27, 2016 12:48 am

I got them from zeet on QW and then tweaked them a bit to my system.
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Re: VEMS injector settings Siemens 630cc

Postby ChrisAudi80 » Sat Aug 27, 2016 9:51 am

UrSobsessed wrote:I got them from zeet on QW and then tweaked them a bit to my system.

Don't know who zeet is. How much tweaking did you do?

I have kept the settings that were in the ECU since I got it and that seems to work OK.
96 S6 auto
95 80Q AEB VEMS
ChrisAudi80
 
Posts: 715
Joined: Mar 2, 2013
Location: Bangkok, Thailand

Re: VEMS injector settings Siemens 630cc

Postby UrSobsessed » Sat Aug 27, 2016 11:43 pm

I didn't mess with them too much. Mostly the voltage cells that the car most commonly operates in. Even then, I didn't move the values more than maybe +/- 100us. It's been a long time since I messed with them. The traditional settings work pretty well, but I found I was able to get better results in fuel and idle tuning with the simplified settings.

You can try this method with deadtime calculation also: http://www.vemssupport.com/forum/index.php/topic,2240.msg24790.html#msg24790
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Re: VEMS injector settings Siemens 630cc

Postby ChrisAudi80 » Mon Aug 29, 2016 2:11 am

UrSobsessed wrote:I didn't mess with them too much. Mostly the voltage cells that the car most commonly operates in. Even then, I didn't move the values more than maybe +/- 100us. It's been a long time since I messed with them. The traditional settings work pretty well, but I found I was able to get better results in fuel and idle tuning with the simplified settings.

You can try this method with deadtime calculation also: http://www.vemssupport.com/forum/index.php/topic,2240.msg24790.html#msg24790


Good information. :ty:
96 S6 auto
95 80Q AEB VEMS
ChrisAudi80
 
Posts: 715
Joined: Mar 2, 2013
Location: Bangkok, Thailand

Re: VEMS injector settings Siemens 630cc

Postby ChrisAudi80 » Mon Nov 14, 2016 8:27 pm

Changed my injector effective rampup to 240us, from 1008us. Big difference. Much better injector response that required a complete retune of the VE table had to go 10-20% up almost everywhere.
96 S6 auto
95 80Q AEB VEMS
ChrisAudi80
 
Posts: 715
Joined: Mar 2, 2013
Location: Bangkok, Thailand


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