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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

at wits end

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Old Jul 24, 2007 | 11:24 PM
  #1  
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Plums72
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Cool at wits end

ok so as in my other post, dang these old efi electronics, i stated that my truck is running badly and that it has an eratic rough idle and doesnt run as good as it should, when i tested it, it showed "profile ignition sensor circuit malfunction"
but i think it may also be the manifold absolute pressure sensor, i know on these old efi trucks that you can change alot of things and still not fix the problem, but i love this truck cause it was my grandpas and i really dont want to change it to a carb motor, so any help would be appreciated

its a 1986 efi 5.0 AOD

(where is the MAP sensor located?)
 
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Old Jul 25, 2007 | 12:00 AM
  #2  
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f100beatertruck
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MAP is on the passenger fender by the starter solenoid. They moved it to the firewall on the later trucks.
 
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Old Jul 25, 2007 | 12:31 AM
  #3  
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thanks

um how do you check if its bad?
 
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