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Message: [QUOTE="twin_turbo, post: 214284, member: 2984"] I have a 94.5 f350 that we swapped a 7.3 into. we have it running now but it wont accelerate and will only idle. the motor is a 94.5 the wiring is from a 95, underdash harness 97, pcm 95. There are two codes: po122 and p1661 which are low voltage input at tps switch So far we have tried a new computer, swapped pedals and the one I have works, relays, and I have pulled the wire loom off and have checked all the wiring under the dash and hood that is in the same circut as the accelerator position sensor. There is power to the brown and white wire that ties into all of the sensors, computer and aps and there is power to all except tps and barometric pressure sensor. I tried to connect the aps and baro sensor to the plug outside the cab and they have power but still no luck. I am starting to get frustrated and I am only down to a few possibilites that I think are causing it. 1) the 97 harness will not work and i will need to get a 94.5(everything works except throttle, windshield wipers and cluster which is gas ) 2) There is a broken or shorted out wire in the cab but I can't find it after 4hrs of searching all wiring looks good. 3) keyless entry box- has plugs in harness but I dont have one to try and doubting this is the problem. 4) idm or a sensor? I have talked to the diesel mechanic at ford and he figured it would be the tps or ivs. If I cant figure it out in the next day or two I am going to take it in and have them put it on their computer. thanks for any info [/QUOTE]

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