5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

MAP Sensor

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Old Feb 20, 2008 | 03:25 PM
  #1  
65coupe88hatch's Avatar
65coupe88hatch
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From: Pennsylvania
Default MAP Sensor

How would you know if your MAP Sensor was bad?? Im trouble shooting my idle issue still and cant seem to pin point it.
Old Feb 20, 2008 | 03:31 PM
  #2  
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Default RE: MAP Sensor

so what is the prob? and when does it occur? and what have you tried to correct it??
Old Feb 20, 2008 | 04:23 PM
  #3  
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Default RE: MAP Sensor

Start with the DIY KOEO/KOER/Cylinder Balance Self-Test Procedure

Old Feb 20, 2008 | 04:25 PM
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Default RE: MAP Sensor

ORIGINAL: Joel5.0

Start with the DIY KOEO/KOER/Cylinder Balance Self-Test Procedure

dead link
Old Feb 20, 2008 | 04:41 PM
  #5  
65coupe88hatch's Avatar
65coupe88hatch
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Default RE: MAP Sensor

ORIGINAL: mjr46

so what is the prob? and when does it occur? and what have you tried to correct it??
Its still the same problem, the idle will fluctuate from anywhere from 500rpms/1500rpms and sometimes stall and sometimes keep itself up, its not at any special time ( i mean cold or hot does it at both points)

But so far, ive checked vacuum lines, no cracks breaks or missing lines, cleaned the IAC, Replaced the TPS, Cleaned throttle body, Used fuel injector cleaner multiple times, new fuel filter, plugs, wires, distributor cap, rotor, cleaned battery terminals, new air filter
Old Feb 20, 2008 | 05:51 PM
  #6  
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mjr46
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Default RE: MAP Sensor

try cleaning the big pack connector and install dialectic grease in pins..the one behind the throttle body
Old Feb 20, 2008 | 06:56 PM
  #7  
65coupe88hatch's Avatar
65coupe88hatch
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Default RE: MAP Sensor

by the "big pack" do you mean the "salt and pepper connectors" the black and whiteish ones?
Old Feb 20, 2008 | 07:05 PM
  #8  
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Joel5.0
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Default RE: MAP Sensor

Speed density system or MAF?....... sorry for the link above try this one, and check what failures codes show up.
Old Feb 20, 2008 | 07:40 PM
  #9  
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Default RE: MAP Sensor

ORIGINAL: 65coupe88hatch

by the "big pack" do you mean the "salt and pepper connectors" the black and whiteish ones?
yes those are the ones..spray some electromotive cleaner down in them and after that blow out with compressed air and then add dialectic grease to pins and reconnect
Old Feb 22, 2008 | 02:39 PM
  #10  
65coupe88hatch's Avatar
65coupe88hatch
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From: Pennsylvania
Default RE: MAP Sensor

could that be a possiblity
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