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Title: Correction for Saab injectors Post by: envisible on September 07, 2012, 07:07:03 AM Hello.
I bought saab injectors, Bosch p/n 0 280 156 023 for my A4'02 AMB engine. They are 382cc at 3 bars. Firstly, I corrected KRKTE to 0.07384 (from ME7 tunung wizard) and KVB from 316 to 425. And after starting I has very rich mixture..And additive correction goes to out of limit.. What wrong with me? Which tables I nedd to correction in additional? I'm sorry for my English.. Title: Re: Correction for Saab injectors Post by: professor on September 07, 2012, 07:18:41 AM Are you using 4bar fpr?
KRKTE is too low but does not explain rich conditions. For 3 bar fpr KRKTE should be adjusted around ~0.087 and KVB == 382. Title: Re: Correction for Saab injectors Post by: envisible on September 07, 2012, 11:08:18 PM After one more flashing problem solved :)
I'm using stock fpr, as I khow, it's 4bar. I use 0.07 KRKTE and I have -2.3...+1.1 lamba-correction on idle. Is it OK? And additive is about 4%.. Is it necessary to correct TVUB table? Title: Re: Correction for Saab injectors Post by: professor on September 08, 2012, 01:19:21 AM I d add ~4% to your current KRKTE value :)
Title: Re: Correction for Saab injectors Post by: envisible on September 08, 2012, 04:57:31 AM Thanks. 4% additive means rich condition?
Title: Re: Correction for Saab injectors Post by: professor on September 08, 2012, 08:35:02 AM The opposite.
Title: Re: Correction for Saab injectors Post by: envisible on September 14, 2012, 12:22:47 AM Hello again..
Since 2 days of driving, I have MIL ind and vag-com shows: 17544 - Fuel Trim; Bank 1 (add): System too Lean … 001 - Upper Limit Exceeded Something wrong in my fuel system? I have no changes of boost, just change the injectors nad KRKTE and TVUB tables.. Maybe my injectors are not really 382cc and I need perfomance test to check actual flow? Are 2002 AMB having 4 bar fpr? Title: Re: Correction for Saab injectors Post by: phila_dot on September 14, 2012, 05:38:05 AM Hello again.. Since 2 days of driving, I have MIL ind and vag-com shows: 17544 - Fuel Trim; Bank 1 (add): System too Lean … 001 - Upper Limit Exceeded Something wrong in my fuel system? I have no changes of boost, just change the injectors nad KRKTE and TVUB tables.. Maybe my injectors are not really 382cc and I need perfomance test to check actual flow? Are 2002 AMB having 4 bar fpr? proffesor has been telling you the whole time that your injector calibration is off. Positive fuel trims == lean condition Title: Re: Correction for Saab injectors Post by: envisible on September 14, 2012, 05:59:42 AM What I should do now?
Can I use these injectors or they are broken and I need a new set? Title: Re: Correction for Saab injectors Post by: phila_dot on September 14, 2012, 07:55:31 AM What I should do now? Can I use these injectors or they are broken and I need a new set? Sounds like a tuning issue to me. Have you tweaked your calibration or are you completely relying on that "wizard"? Title: Re: Correction for Saab injectors Post by: professor on September 14, 2012, 10:34:29 AM Injectors are not calibrated correct and that causes this MIL and probably driving variations.
As phila_dot says your tuning file needs adjustments. Title: Re: Correction for Saab injectors Post by: envisible on September 14, 2012, 12:47:35 PM Need correct KFKHFM map?
Thanks Title: Re: Correction for Saab injectors Post by: pvl on September 14, 2012, 01:07:23 PM Post your LAST file over here, to let people see what you did ?
Thanks Title: Re: Correction for Saab injectors Post by: envisible on September 14, 2012, 03:16:35 PM There is my version.
I just changed KRKTE scale. My car has only injectors changed.. Big thanks.. Title: Re: Correction for Saab injectors Post by: pvl on September 14, 2012, 05:27:43 PM Hi,
Thanks for posting the file. Let's have a look to it later. First some extra questions to be sure : You have NO other modifications made, right ? ? ? ? NO other turbocharger, NO other downpipe, ect, etc, to get more power, right ? ? ? ? Thanks, PvL Title: Re: Correction for Saab injectors Post by: envisible on September 14, 2012, 10:36:19 PM No, my car is fully stock, just injectors are changed..
I have a 2.0 tfsi crankshaft, 144mm conrods and pistons for stroker, but I will install that in the cold winter evenings :) Now I just learning to setup my ECU :) Title: Re: Correction for Saab injectors Post by: professor on September 15, 2012, 01:02:07 AM Sorry cant help since i ve not have definition file for it.
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