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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIV-A4 TDIs (VE and PD)

VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old December 7th, 2018, 07:35   #1
D0lan
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Join Date: Nov 2018
Location: Netherlands
TDI(s): Golf 4
Default Converting Diesel cluster to gas / MPH to KMH

Hey guys, i was testing a bit with my new UK fullfiss cluster
(1J0 920 946 C) SW10.10

trying to get the RPM scale to Gas and the speedometer to 100 at 12 o clock.


i tryed flashing eeprom to 846C and did an output test on vcds but is still stopping at 3000rpm on the diesel scale. same as speedo.



i searched on this forum and google but had no succes. do i have to manualy find the adress of the rpm and speedo and adjust it?




anybody have more expierence and can help me a bit?



Last edited by D0lan; December 7th, 2018 at 07:45.
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Old December 9th, 2018, 15:59   #2
D0lan
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Bump.
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Old December 9th, 2018, 19:35   #3
Lurker92
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Are you sure you flashed an 846 dump? Is it a 501 or 503 cluster?
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Old December 11th, 2018, 15:35   #4
D0lan
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It's a 501 cluster i flashed it with the same software version (10.10). The part number did change but no idea why it outputs at original rpm. Used 2 diffrent 846 dumps.

Not sure what i did wrong (also did power off after flashing and waited before restarting)
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Old December 11th, 2018, 18:53   #5
Lurker92
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Been a while since i messed with my clusters, trying to remember what all i did for conversion. I have all the gas cluster dumps from mine though, maybe you can post a file I can download and compare?


Try reading your cluster as you have it now and check that the data is the same as the dump you flashed with a hex editor.
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Old December 12th, 2018, 13:57   #6
D0lan
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Yeah if you could do that, would be great.
This is the link of original eeprom https://mega.nz/#!coAG1ASR!jdlkq9LJ_...MXZAQiBdJgUJXk let me know if you can open it.
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Old December 17th, 2018, 07:02   #7
Lurker92
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Sorry, been super busy and didn’t see your post. I’ll compare your cluster dump tonight and let you know.
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Old December 17th, 2018, 16:20   #8
gmenounos
 
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I'm pretty sure you'd want to start with a 1J0920846A dump as that's a gas cluster. 846C is diesel. That should give you the correct scale on the tachometer. Is the speedometer gauge going to be in mi/h or km/h and what is the max speed going to be?

Also, the VCDS output test may be designed to stop the needles at 3000 rpm and 100km/h no matter whether the cluster is gas or diesel.
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Old December 23rd, 2018, 09:54   #9
D0lan
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Quote:
Originally Posted by gmenounos View Post
I'm pretty sure you'd want to start with a 1J0920846A dump as that's a gas cluster. 846C is diesel. That should give you the correct scale on the tachometer. Is the speedometer gauge going to be in mi/h or km/h and what is the max speed going to be?

Also, the VCDS output test may be designed to stop the needles at 3000 rpm and 100km/h no matter whether the cluster is gas or diesel.
Okay thanks for the reply. I'm going to test for a 846A in a bit and will keep you updated. The speedometer gauge is going to max 260kmph. But the 100kmph must be at 12o clock. It's now at 10/11 o clock in the UK style plate. Like to change it to EU plate. Any idea how to approach this? (PS im talking about SE 'sport' plates)
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Old December 23rd, 2018, 11:02   #10
D0lan
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The RPM scale is corect now with 846A thanks. Now is the speed scale also correct for some reason. I think i can manage it from here on thanks.

Last edited by D0lan; December 23rd, 2018 at 11:06.
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Old December 24th, 2018, 13:34   #11
Nuje
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If you have any other issues, best guy to help with cluster EEPROMs is user ,jetta97 (Marin is his name). He's bailed me out more than once with cluster swaps and re-programming.
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