Any other symptoms or strange behavior? I don't know if that's a proper TPS reading or not but that problem does sound like a sensor to me... Can't imagine it's the IAC valve.....or whatever the hell they're called on Fords...Air Bypass Valve is it? Uhm.....a shot in the dark here (which is what all of my guesses on here are...I'm used to Chevy not Ford)....vacuum leak?
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'91 Mustang GT 5.0 AOD Daily Driver
Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI
13.73 at 103.8, ~2.2 60'
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