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Title: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: NOTORIOUS VR on October 02, 2011, 01:34:17 PM So I started off with a stock M-box making a strong Stg 2+ tune for my buddies AR.
Running great except for whatever reason sometimes in the higher gears (4,5,6) the car throws on the ABS, ride hight, and ESP lights a little bit into the pull and the car slows down.. once letting off the lights go out about 30 sec later. In the logs I see that the gears are all screwed up. it thinks 3rd is 2nd, and for on a full pull in 5th, the log shows it starts in 5th but changes to 4th after a few hundred RPM. He's got big wheels (19" MTM) and I know the AR has a different gearbox... is there something I'm missing? Thw S4 wiki shows this for the wheels speed: Code: Wheel speed sensor Will this help me? Teaser log: (http://i53.tinypic.com/oaw0a9.jpg) Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: NOTORIOUS VR on October 02, 2011, 02:52:33 PM tested it... and although the speedo was within 1-2 km/h in comparison to the GPS speed, the ECU still thinks it's in a different gear...
Ideas? Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: judeisnotobscure on October 09, 2011, 06:40:46 AM I've done a couple ar's with mbox coding and haven't run into this yet.
Have u tried recoding the cluster to match the ecu and or ecu to match the other hardware? Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: nyet on October 10, 2011, 10:11:05 AM Thank you setzi! I will add that information to the s4wiki time permitting.
Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: NOTORIOUS VR on October 21, 2011, 06:16:24 AM Thanks! I didn't even check on this thread until now...
I'm assuming I am having this issue because the gearbox in the AR has different ratio's? Also, if I leave them alone will it effect anything other then what the ECU is seeing? Does it matter if the gear indication isn't correct for the ECU? Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: NOTORIOUS VR on October 21, 2011, 06:17:21 AM Oh as for the ESP and ABS lights coming on... I think that has something to do with exceeding load limits (MAF, etc) as I had it happen to me last night on my car.
Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: julex on October 26, 2011, 10:22:09 AM abs/EPC light is for exceeding max maf limit, easy fix @ KFMLDMX in wot column. You have a code sctored in ECU for that if you care to check.
Scale is appropriately high, about 10% more than what you see at WOT in that car, and you will never hit it again in normal situation. Should the maf crap out completely it should still react. I will hunt the table responsible for vehicle gear indicator in the ECU. There mus be a one row table with ratios of vehicle speed to motor speed that determines the gear in manual ECUs. Obviously S4 has a different ratios there than Allroad due to tranny differences. Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: nyet on October 26, 2011, 10:26:50 AM Thank you setzi! I will add that information to the s4wiki time permitting. Whoa? Where did his post go :( Anyway, it is in s4wiki http://s4wiki.com/wiki/Tuning#Gear_detection Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: julex on October 26, 2011, 10:30:24 AM Thanks nyet. I just found this in WINOLS myself. Calculating this shouldn't be a huge tasks but if somebody can do that for allroad it would save me few minutes :)
Thanks. Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: nyet on October 26, 2011, 10:31:45 AM I have an allroad file floating a round gimme a sec
Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: nyet on October 26, 2011, 10:36:15 AM here is what i have. ymmv.
"NVQUOT1O_0_A","250.0","0x7d00" "NVQUOT1O_1_A","332.0","0xa600" "NVQUOT1U_0_A","97.0","0x3080" "NVQUOT1U_1_A","96.0","0x3000" "NVQUOT2O_0_A","100.0","0x3200" "NVQUOT2O_1_A","97.0","0x3080" "NVQUOT2U_0_A","49.0","0x1880" "NVQUOT2U_1_A","60.0","0x1e00" "NVQUOT3O_0_A","50.0","0x1900" "NVQUOT3O_1_A","61.0","0x1e80" "NVQUOT3U_0_A","38.0","0x1300" "NVQUOT3U_1_A","43.0","0x1580" "NVQUOT4O_0_A","41.0","0x1480" "NVQUOT4O_1_A","44.0","0x1600" "NVQUOT4U_0_A","31.0","0xf80" "NVQUOT4U_1_A","33.0","0x1080" "NVQUOT5O_0_A","33.0","0x1080" "NVQUOT5O_1_A","33.5","0x10c0" "NVQUOT5U_0_A","26.0","0xd00" "NVQUOT5U_1_A","28.0","0xe00" "NVQUOT6O_0_A","27.796875","0xde6" "NVQUOT6O_1_A","28.5","0xe40" "NVQUOT6U_0_A","19.0","0x980" "NVQUOT6U_1_A","21.5","0xac0" Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: NOTORIOUS VR on October 26, 2011, 11:00:11 AM <3's
Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: julex on October 26, 2011, 11:07:40 AM "1_A" Allroad?
Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: judeisnotobscure on October 26, 2011, 11:12:17 AM I have an allroad file floating a round gimme a sec u mind posting up a stock ar file for a 6spd?I've been looking for one. Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: julex on October 26, 2011, 11:25:49 AM It's in tunes section. Few flavors of it from different boxes.
http://nefariousmotorsports.com/forum/index.php/topic,16.0.html The one above is actually an allroad file, not A6. Exact same I originally had on my car 2001 allroad. Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: nyet on October 26, 2011, 11:32:20 AM Question is, why are they all doubled up?
Do I know which one is right? No. I assume _1_ and not _0_, since that matches the s4. Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: julex on October 26, 2011, 11:39:57 AM Gotcha. Just wondering where you got it from paired and with postfixed like that.
Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: nyet on October 26, 2011, 11:43:32 AM I have a full AR mappack for 4Z7907551R
http://nyet.org/cars/files/ Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: julex on October 26, 2011, 11:56:32 AM I see. That's ME 7.1.1 map but the second set of values appears to be matching what allroad tranny would look like.
Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: judeisnotobscure on October 26, 2011, 04:45:57 PM I have a full AR mappack for 4Z7907551R much appreciated... i actually googled it and found a stock bin. you had posted somewhere.http://nyet.org/cars/files/ Title: Re: Working on a STG 2 tune on an AR, have a strange issue with Gear indicator? Post by: julex on October 28, 2011, 06:24:41 AM Back to the subject.
I tested the value Nyet posted and they play very nice with allroad. finally my 3rd gear runs report as 3rd not 2nd gear which was also the reason why EcuXPlot would not display the runs as filter was looking for 3rd not 2nd gear logs :) Thanks! |