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Single wire even for a sweep gague. It's a "resistance to ground" type system. Cars from the fuel injected era often have two- one for the dash gague (still single wire up through most of the 90s) and a second for the ECM (called a Coolant Temp Sneosr wich uses a 2-wire connection).
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1990 454SS pickup. Original "tow truck motor" 454 upgraded to something a little more "aggressive." Seems pretty stout but the fuel bill is nuts.
78 Malibu. Inherited with only 35K on the odo! Mild 383 with Weiand 142 blower on top. Mid 12s appears to be the best it's gonna do on street rubber. Runs so good I may never drive it again.
"Last remaining QJet tuner on planet Earth!"
Last edited by Damon : 06-17-2012 at 07:55:05 AM.
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