[T3] Car Runs Great, but Why?

[J. Jonik]

To be clear...that Intake Temp Sensor is still screwed into the Air Dist, of course...it's just the double wire that's disconnected.    There is no jet to leak there.  
 The Cold Start Switch, with a jet, is un-hosed and unwired, but still also screwed into the Air Distributor. No jetting possible there.   

[T3] Car Runs Great, but Why?
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A little knowledge can sound right, but not quite be right.  Your mechanic
is not too far off with his advice, but a little more info might let you
understand it better.

As posted it is often fine to leave the intake air temp sensor unplugged.
It is merely a tertiary mixture adjustment (primary being manifold vacuum,
secondary being head temp).  However, it is still important that the jet not
leak; even unplugged, it is under pressure, and a leaky jet can richen your
mixture and even force gas into your oil after shutdown, same as a regular
injector.  Either verify it does not leak by removing it and observing it
under pressure, or cap off the line ahead of the jet.

They usually open, not short, which would look the same as an unplugged
sensor to the ECU.
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