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Old 01-17-2017, 09:05 AM   #1
Board Member
Join Date: Dec 2010
Location: Austria
Default Speedo and rev counter jumping

Need your advise.
Car was standing for a year. Opened the engine for H-conrods and changed ignition for
wasted spark.
As there are a few problems which I will be able to solve, there Is a major problem with the speedo as it is jumping or most of the time fixed at 80km/h when the car is standing and running. The rev counter is jumping around permanent.
Any idea what could be the problem?

I pulled the wasted spark cables below the driver side dashboard, but took care and I don´t think that I hurt some of the other cables...
regards Mathias
Triebwerk is offline   Reply With Quote
Old 01-17-2017, 11:07 AM   #2
All idiot, no savant
Join Date: Aug 2004
Location: The Netherlands, Europe

Sounds like a bad ground on the cluster? Car standing outside, leaked water?

Fixed at 80 km/h is very odd.

And no power taken from somewhere where it can cause interference? Not sure if possible with this coil-powerstage combination.
JW240 is offline   Reply With Quote

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