Rs4b5limo96
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« on: June 23, 2020, 10:00:05 PM »
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Hello guys. Have a problem, I tried to swap cluster to a rs4 in my 98 s4b5. Made a new wire harness. Problem now is that rpm does not work, jumps up and up, very stacky, never returns. Why ? I have no canbus in my oem harness, but don't find any in new cluster either.
Also the speedo is weird, after 140 km/h it jumps to 180 and when you go to standstill, the speedo is still stuck on 40 km/h.
Tried to wire canbus from ecu (rs4 ecu) to enviroment unit but no difference.
Thanks
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« Last Edit: June 24, 2020, 12:17:30 AM by Rs4b5limo96 »
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BlackT
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« Reply #1 on: June 23, 2020, 11:21:53 PM »
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RS4 B6, that car does not Exist  |
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adam-
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« Reply #2 on: June 24, 2020, 06:17:44 AM »
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Can you do an output test on VCDS? Possbly had the needles off in the past and they have been seated too deeply, causing them to stick. An output test will show this.
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Rs4b5limo96
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« Reply #3 on: June 24, 2020, 07:40:41 AM »
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Yep have tried it, and removed needles.. they're working in vcds
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BlackT
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« Reply #4 on: June 24, 2020, 08:03:15 AM »
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See tru VCDS do you have good reading of RPM and KMH in measuring blocks
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Rs4b5limo96
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« Reply #5 on: June 24, 2020, 08:15:05 AM »
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Km/h have i not checked, but rpm yes steady value and react as it should, and if i connect the old cluster with only the blue connector (the one with power and rpm signal) it works.
I have also tried change the rpm motor in the cluster from my old cluster, and my old still works fine
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Fazi
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« Reply #6 on: June 24, 2020, 11:03:18 PM »
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Hello guys. Have a problem, I tried to swap cluster to a rs4 in my 98 s4b5. Made a new wire harness. Problem now is that rpm does not work, jumps up and up, very stacky, never returns. Why ? I have no canbus in my oem harness, but don't find any in new cluster either.
Also the speedo is weird, after 140 km/h it jumps to 180 and when you go to standstill, the speedo is still stuck on 40 km/h.
Tried to wire canbus from ecu (rs4 ecu) to enviroment unit but no difference.
Thanks
what is the value in Adaptation -->Chanel 60? can you attach dump from instruments? have you swapped pins between the plugins? pinout of both counters is different |
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« Last Edit: June 24, 2020, 11:06:51 PM by Fazi »
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Rs4b5limo96
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« Reply #7 on: June 24, 2020, 11:42:05 PM »
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Will check tonight, I suppose you mean in vcds yes?
Yes i have switched pinouts. Only thing isn't working is oil sensor, havent wired it cause i have s4 engine harness
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Fazi
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« Reply #8 on: June 25, 2020, 01:39:01 AM »
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Will check tonight, I suppose you mean in vcds yes?
Yes i have switched pinouts. Only thing isn't working is oil sensor, havent wired it cause i have s4 engine harness
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Yes vcds. I can turn off the oil sensor in dump. |
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prj
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« Reply #9 on: June 25, 2020, 02:16:36 AM »
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On RS4 cluster RPM comes from CAN.
On 1998 it comes direct from wire.
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Rs4b5limo96
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« Reply #10 on: June 25, 2020, 02:32:10 AM »
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So prj, isn't it possible to get to work?
If i have ecu from rs4 and cluster, i cant find CAN in in cluster ?
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Fazi
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« Reply #11 on: June 25, 2020, 05:45:24 AM »
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So prj, isn't it possible to get to work?
If i have ecu from rs4 and cluster, i cant find CAN in in cluster ?
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you need to recode channel adaptation 60 to value "0" |
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Rs4b5limo96
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« Reply #12 on: June 25, 2020, 12:32:10 PM »
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I already had value 0..
Will send full scan soon.
Alot faultcodes but one I found intresting, cliffhanger
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Fazi
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« Reply #13 on: June 25, 2020, 01:19:45 PM »
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attach eeprom. I will check if the indicator maps are correct.
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Rs4b5limo96
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« Reply #14 on: June 25, 2020, 01:30:40 PM »
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haven't scan eeprom before so I will have to check how first. i have vcds, nefmoto, vagtacho this is also my first time with nefmoto.. most of the faultcodes are because my harness from pre facelift s4b5. so i dont have like SAI and so on. But CAN message and overboost is my biggest problem. i also notice speed sensor error, but not with old cluster ? performancetest also fail, rpm needle stucks at max rpm and km/h goes all the way then stops at 100km/h  |
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