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Plug in the plug, or not (*with pics)

1875 Views 7 Replies 6 Participants Last post by  tigerpwr
I just removed my engine cover for the first time and I found this plug right by the driver side footwell.

What is it for and do I need to plug it in? Also the wire just below it is exposed and looks very frail.

I'm also doing: plugs, wires, rotor, cap, and air filter...anything else to check while the cover is off?

Thanks :cheesy:
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generaljake01 said:
gtk i right on the knock sensor and the coolant temp. and as far as the white one i dont know what it for but for what its worth my 87 had a/c and all that but that white plug wasnt used in my van...ever...Its all crusty and taped up and stuffed into the split loom...looks like a factory job too...
gtkane said:
Passenger side plug is a tap for a tach signal-don't worry about it.
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