Join Date: Mar 2000
Location: Northern Catskill Mountains, NY
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Re: 88.5 tach is not Plug&Play for a 1994 Sammy
Might just be 94-95. They did have a different FSM for them.
But do understand, there was no drivability issues, not idiot lights going off on mine. It wasn't until we went to install the VSV, which is needed to manage fuel correctly in a EFI, did we notice the difference in wiring.
When I would start up, all the idiot lights came on normal, and went out when they should. But fact was in my case that the idiots didn't match up.
Sooo, that being said, and unless everyone did an exhaustive comparison of the two dashes before they swap, I bet my bottom dollar that there are folks out there running a 88.5 tach dash in EFI Sammies, and because it runs and nothing is a problem, assumes all is well.
I assumed it was okay, until now.