Tach problem with 90
03-31-2002, 11:00 PM
#1
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Member Since: Feb 2001
Location: Brisbane, Queensland,Australia
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Tach problem with 90
The tach on my 90 continually jumps from 0 to pegging out. I have seen plenty of posts about the differerent reasons for this happenening but have never actually seen a post by anyone that has fixed the problem. Has anyone been able to actually repair this problem ??? If so how ??
Thanks
Steve
Thanks
Steve
03-31-2002, 11:22 PM
#2
Race Director
Re: Tach problem with 90 (sm90)
I have the same problem with my 94. I have posted the problem previously and the only answer that I got was to replace the tachometer. So recently I purchased an auto Meter tach.
03-31-2002, 11:47 PM
#3
Pro
Re: Tach problem with 90 (STL94LT1)
You haven't added and MSD ignition have you? That is a sympton of the Tach filter on an aftermarket ignition...
04-01-2002, 12:56 AM
#4
Burning Brakes
Re: Tach problem with 90 (ralexand)
My 90 HAD the same problem. I found out it had a tach filter that was not grounded. When the clutch was replaced (right before I got the car) they didn't bolt the filter to the bell housing. After I grounded it all was well. I also had a schematic for the filter emailed to me. I still have it if you'd like email me and I will send it to you. Very simple and fairly easy to make.
04-01-2002, 03:29 AM
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Re: Tach problem with 90 (90_roadster)
The ignition is standard.
I the filter is fixed to the engine block. I even tried to totally by-pass it, this made no difference.
Thanks for the suggestions.... any others would be appreciated !!
Steve
I the filter is fixed to the engine block. I even tried to totally by-pass it, this made no difference.
Thanks for the suggestions.... any others would be appreciated !!
Steve
