Speedometer help
08-04-2024, 04:25 PM
#1
Speedometer help
my computer fried so I am trying to hard wire the Speedo. I saw on here that all you have to do is ground the blue wire on the vss now when I drive the needle goes all over the place and won’t stay still any suggestions? I was thinking not a good enough ground I have a 91.5 w250
that’s for me
08-06-2024, 05:55 AM
#4
Registered User
'91.5 is a special 1/2 year wire harness and PCM.
Just an FYI as the wiring is different than the '92/'93 trucks that also have a PCM
Just an FYI as the wiring is different than the '92/'93 trucks that also have a PCM
The following 2 users liked this post by oliver foster:
Firstgenforever (08-06-2024),
nothingbutdarts (08-06-2024)
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