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Discussion Starter #1
Hey guys I need help, never modded a benz before. I guess if I knew what I was getting into, id never had bought one, lol.
I have installed a progressive nitrous gauge and need a tach signal, can read it off the coil packs. has anyone found out how to get a clear signal? I found one write up, but it wasnt clear to me.
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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Welcome from Valrico, Florida!
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Founding Member #2 2008 SLK55 AMG
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Hey guys I need help, never modded a benz before. I guess if I knew what I was getting into, id never had bought one, lol.
I have installed a progressive nitrous gauge and need a tach signal, can read it off the coil packs. has anyone found out how to get a clear signal? I found one write up, but it wasnt clear to me.
Hopefully Gabus or leapyfish or livefree will chime in.
 

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Premium Member 2002 SLK230K
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I'm stumped, i never had the need to find a signal for the tach. Sorry i can't help. If you find what your looking for please post the info.
 

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Is it for the SLK230 or 320 ???? Shoot thats easy!!! Its right by the radio...one of the wires plugs into your stereo for some strange reason or the other? I just used it to wire in my new GPS and it needed a speed sensor wire...I presume thats what you need??????

Ski

PS.
Like it was said above, use the search for "GPS" or "Radio install" or something like that...there is a wiring schematic to show ya which wire it is...very simple if thats what you need

Ski
 

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Discussion Starter #9
yeah guys im stumped

I've been asking techs and engineers everyday, they all tell me that the system is all integrated with itself. I can tune the gauge to be time based instead of rpm based, but id much rather have an rpm signal...

Thanks everyone...
 

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I've been asking techs and engineers everyday, they all tell me that the system is all integrated with itself. I can tune the gauge to be time based instead of rpm based, but id much rather have an rpm signal...

Thanks everyone...
You might pick up a signal from one of the injectors somehow? It squirts once per rev right? There has to be a way to get it!
 
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