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rob.mwpropane
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« Reply #90 on: January 03, 2012, 11:00:01 AM »
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Is this TVUB??
TVUB - Factor 0.003200 precison 4 - units (ms)
X-axis unit (V) with factor 0,070400 precison 4
KRKTE - factor I think it's 0,002133 using precision 4
For the TT225 the stock value is 0.0832 (ms/%)
I think KRKTE is .000111? I will check when I het home, that's just from memory? Not 100% on that. |
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This has nothing to do with cars but you can see my glorifying job at, www.MWPropane.com |
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pedrosousa
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« Reply #91 on: January 03, 2012, 11:19:44 AM »
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Is this TVUB??
TVUB - Factor 0.003200 precison 4 - units (ms)
X-axis unit (V) with factor 0,070400 precison 4
KRKTE - factor I think it's 0,002133 using precision 4
For the TT225 the stock value is 0.0832 (ms/%)
I think KRKTE is .000111? I will check when I het home, that's just from memory? Not 100% on that. I've seen different factor in other ECU's: 0.000167 -> 4z7907551R (A6 2.7T) 0.000111 -> 8d0907550G (S4) 0.000111 -> 8d0907551F (S4) 0.002133 -> 8N0906018F (1.8T 225cv) The TT has an 512kb ECU so the krkte it's 8bit, and the 1024kb ecu uses 16bit krkte... the difference could be here! |
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« Last Edit: January 03, 2012, 11:29:49 AM by pedrosousa »
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rob.mwpropane
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« Reply #92 on: January 03, 2012, 07:21:43 PM »
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I've seen different factor in other ECU's:
0.000167 -> 4z7907551R (A6 2.7T)
0.000111 -> 8d0907550G (S4)
0.000111 -> 8d0907551F (S4)
0.002133 -> 8N0906018F (1.8T 225cv)
The TT has an 512kb ECU so the krkte it's 8bit, and the 1024kb ecu uses 16bit krkte... the difference could be here!
^^^Thats some interesting info. I've never really looked at 512k files (really didn't want to confuse myself to bad). I'm still pretty confident factor is .000111, Here's some screen shots. I made them quick, but you'll see. I have my maps from my bin up in the left for reference. Fwiw, even if .000111 is off, just watch your fuel trims and adjust accordingly. You might have to do that anyway unless you can find the stock bin to go along with your injectors. As far as I know, TVUB (battery voltage compensation) should be found from injector data online. Google your part number off the injectors. I'm kind of surprised you didn't attack your fueling first  Any reason? From everything I've read, KRKTE and associated maps are one of the most important elements in ME7. |
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This has nothing to do with cars but you can see my glorifying job at, www.MWPropane.com |
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fredrik_a
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« Reply #93 on: January 04, 2012, 12:18:50 AM »
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so the figures should be closer? This is what confused me because of the post regarding IOP being the inverse of IRL?
Forgot to answer this... Read your Funktionsrahmen and you will see how it works. |
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airtite
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« Reply #94 on: January 04, 2012, 12:24:49 AM »
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I'm kind of surprised you didn't attack your fueling first Any reason? From everything I've read, KRKTE and associated maps are one of the most important elements in ME7. Hi Rob, fueling on my car has been rich since I put the s3 injectors on nearly a year ago already and I ALWAYS watch my fuel trims so I wanted to focus on what I thought were the more complicated maps first ie boost etc then focus on fueling (kinda backwards I know) |
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airtite
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« Reply #95 on: January 04, 2012, 12:44:36 AM »
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You have to find datasheet for injectors to figure;
Hmmm searched google for the datasheet for my injectors not finding a single hit, the injectors which were from an audi 8L S3 part number 0208156063 I assume they are Bosch? nevermind part number was wrong 0280156063 datasheet attached |
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« Last Edit: January 04, 2012, 12:51:41 AM by airtite »
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createddeleted
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« Reply #97 on: January 04, 2012, 02:58:31 AM »
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What fuel pressure are you getting in your system? There must be a regulation somewhere. Regardless, 0280156063 = 393cc injectors @ 3Bar = 269 measured at n-heptane 22.3793336/269 = Calculated KRKTE value @ 0.08319 Get an injector calibration sheet and edit TVUB while you're at it. |
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« Last Edit: January 04, 2012, 03:00:15 AM by createddeleted »
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airtite
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« Reply #98 on: January 04, 2012, 03:20:31 AM »
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What fuel pressure are you getting in your system? There must be a regulation somewhere.
No idea hence my question, I dont have an analog fuel pressure tester. 0280156063 = 393cc injectors @ 3Bar = 269 measured at n-heptane
what is the formula here too calculate the 269? 22.3793336/269 = Calculated KRKTE value @ 0.08319
Get an injector calibration sheet and edit TVUB while you're at it.
injector calibration sheet? Thanks for the assistance. |
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pedrosousa
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« Reply #99 on: January 04, 2012, 03:34:23 AM »
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If you are using S3 injectors they are same of TT225, so use the krkte that I posted above... If your ECU it's a 512kb one, than use the factor that I've posted. It's 8 bit
(The calculated value from krkte it's almost the same that I've posted and seen in one Damos file)
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createddeleted
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« Reply #100 on: January 04, 2012, 03:38:12 AM »
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No idea hence my question, I dont have an analog fuel pressure tester.
what is the formula here too calculate the 269?
injector calibration sheet?
Thanks for the assistance.
393*0.684 = 269 Check your fuel pressure or if stock find out what the stock fuel pressure regulator is for your engine/year/model. As you can see from the image below the injector voltages are given on the spec sheet from the manufacturer (FNPW_OFFSET). Take these values and plug them into TVUB. The values below are for EV14 550cc injectors however.  |
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airtite
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« Reply #102 on: January 04, 2012, 04:23:37 AM »
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thought I would just copy the values of TVUB from an s3 file, looks like the files are pretty close. My defined TVUB is top
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pedrosousa
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« Reply #103 on: January 04, 2012, 04:46:29 AM »
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airtite your file is 512kb?
I have a Damos from a TT25 (512kb file) that I use to define the stuff for my S3 they are very similar if you want I can post the Damos file
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createddeleted
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« Reply #104 on: January 04, 2012, 04:50:43 AM »
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thought I would just copy the values of TVUB from an s3 file, looks like the files are pretty close. My defined TVUB is top
Nice work. Copy over temin as well if you trying to be spot on.  |
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