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Discussion Starter #1
Friend of mine built a turbo 5.0. Looks like excellent work & quality parts. He stopped by with idle low speed issues. I checked his TPS voltage & found 4.94v in & out! I swapped it out with a know good spare I had; same result. I've never run into this before....

Am I sane in thinking he either has both the input & output wires shorted out together, or the EEC has an internal short?
 

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you are not insane for thinking that

unplug TPS, key in run, what are the voltage on all 3 pins of the connector?
 

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Discussion Starter #3
Well, the easiest check was to swap out the EEC for a known good unit. Sure enough; getting proper TPS voltage readings. Thank God! I did not want to pull the whole harness to find a single short or incorrectly pinned wire..... ;)
 

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are you saying your signal was shorted to power?.
 
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