tachometer

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    7.3 IDI Tachometer Woes

    I recently acquired a 1993 F250 4x4 with the 7.3 IDI for $2300. Came with a dash saying 150,000 miles, but who knows if that's accurate. It seems this truck started life off as a V8 gasser and one of the previous owners must've swapped in a 7.3 IDI and E40D auto. All things considered, this...
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    6.9 idi tachometer reading 2x actual RPM

    I have a 1994 f350. It was originally a 7.3 powerstroke and a previous owner for some reason put in a 1983 6.9 idi. I installed a 1993 idi wiring harness, Ecm, and a newer injection pump drive gear housing with a tach sensor. When I fired the truck up it was reading 1500 at idle. The truck has...
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