Greetings all, I've got a 1993 Olds that recently started intermittantly showing the Service Engine Soon light, but only after it warms up.
I pulled the code and it's a 56, transmission input speed sensor (TISS).
The car has around 164k miles.
I'm thinking either the sensor is bad, or most likely it's a problem with the wire since it's coming on only after warming up. I don't know, I guess it could be both.
Anyway...my question is, would it hurt to just leave it alone and run it as is, or should I get this fixed? It doesn't seem to affect how the car runs.
Thanks,
Phil
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