NefMoto > Technical > Cluster and Immobilizer (Moderator: ddillenger) > Question on Change S4 to RS4 cluster
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Author Topic: Question on Change S4 to RS4 cluster  (Read 23401 times)
rnagy86
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« Reply #15 on: April 15, 2013, 03:01:07 AM »
Okay I was wrong, after flashing the eeprom from the S4 cluster I noticed that the oil temperature
gauge stopped working. I flashed the original one back and voila it works. Do you guys have any idea? Smiley
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nyet
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« Reply #16 on: July 09, 2013, 09:54:39 AM »
No clue on the oil temp issue... but i have run in to another issue.. the miles to empty reading is very wrong (about 30% high)...

Is the RS4 fuel tank bigger or something?
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rnagy86
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« Reply #17 on: July 09, 2013, 12:17:51 PM »
Well the cluster code is different, so even the speed/rpm readings were a bit off with the S4 cluster dump written to the RS4 cluster, so I reverted back to the RS4 one and killed the immo led.

The fuel tanks are the same, both being 62 litres.
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nyet
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« Reply #18 on: July 09, 2013, 09:58:37 PM »
Well this is curious

4Z7907551R.csv:"KVNPZ","0x101b7","normierter Krafstoffverbrauch pro Zylinder f▒r Kombiausgabe","1x1","8 Bit","-","L/Zyl.","-","-","20.0","1.0","1.0","840.0","840.0","0x2a","0x2a"
8D0907551F.csv:"KVNPZ","0x1019e","normierter Krafstoffverbrauch pro Zylinder f▒r Kombiausgabe","1x1","8 Bit","-","L/Zyl.","-","-","20.0","1.0","1.0","600.0","600.0","0x1e","0x1e"
8D0907551G.csv:"KVNPZ","0x101a1","normierter Krafstoffverbrauch pro Zylinder f▒r Kombiausgabe","1x1","8 Bit","-","L/Zyl.","-","-","20.0","1.0","1.0","840.0","840.0","0x2a","0x2a"
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ME7.1 tuning guide (READ FIRST)
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nyet
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« Reply #19 on: July 16, 2013, 10:31:17 PM »
Seems as though the issue is that the RS4 cluster somehow ignores FKVA... which is problematic because the max KVB isn't big enough for my injectors. Now experimenting with KVNPZ...
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rnagy86
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« Reply #20 on: July 17, 2013, 01:09:24 AM »
That might be the issue then. I am only running 550cc EV14s and my consumption display usually shows
the correct values.
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phila_dot
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« Reply #21 on: July 17, 2013, 05:09:47 AM »
That calculation is done in the ECU software and the result is sent to the cluster on the CANbus.

Coding issue or max limit in the cluster maybe?
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nyet
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« Reply #22 on: July 17, 2013, 08:54:20 AM »
Quote from: phila_dot on July 17, 2013, 05:09:47 AM
That calculation is done in the ECU software and the result is sent to the cluster on the CANbus.

Coding issue or max limit in the cluster maybe?

That was my understanding as well. I'll know pretty soon, got an almost empty tank of gas now.
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NOTORIOUS VR
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« Reply #23 on: July 17, 2013, 11:23:05 AM »
Quote from: nyet on July 16, 2013, 10:31:17 PM
Seems as though the issue is that the RS4 cluster somehow ignores FKVA... which is problematic because the max KVB isn't big enough for my injectors. Now experimenting with KVNPZ...

I had that issue (ignoring FKVA) but never got to the bottom of it.... I'm curious to see if you get that resolved though Smiley
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« Reply #24 on: July 17, 2013, 11:30:27 AM »
I'm rapidly cooling off on this rs4 cluster thing.
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nyet
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« Reply #25 on: July 18, 2013, 02:36:01 PM »
I have verified that neither KVB nor KVNPZ have any effect on the RS4 cluster. No idea why.

However, maxing KVB and the cluster adaptation to 115% gets me close enough ... so I guess thats that for now.

So anybody wanting to use >900cc injectors with M-box and RS4 cluster will want to consider moving to K-box (which I assume works correctly, although i have not tried it yet)
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
ddillenger
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« Reply #26 on: July 18, 2013, 03:11:55 PM »
Quote from: nyet on July 18, 2013, 02:36:01 PM
although i have not tried it yet)

Smiley
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