1993 Oldsmobile Royale - Service Engine Soon Light

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posted
17 years ago

Sat, Jul 15, 2006 2:14 PM

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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- Edwin Pawlowski
  
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posted
17 years ago

Sat, Jul 15, 2006 3:29 PM

Doubt it is the wire. Wires work in most any temperature in North America, South America, Europe and Asia. I think the polarity is reversed in Australia.

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- Shep
  
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posted
17 years ago

Sat, Jul 15, 2006 7:57 PM

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