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.

need major maf help

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Old 05-15-2012, 03:22 PM
  #1  
g3mustang
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Default need major maf help

so i have error code 66 and cant fix the problem changed got a brand new maf from abaco still nothin! even traded computers with someone.

I have performed maf sensor dc check list! im stuck on dc7,dc8, dc11 im getting no reading of resistence!

i have check for continutiy of the wires from maf harness to computer plug and i get the little beep!

im so lost i need some direction please
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Old 05-15-2012, 08:09 PM
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I even conected pin c and d from the maf straight to the computer and that changed nothin
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Old 05-17-2012, 09:47 AM
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So I've been having code 66 and has put the car in limp mode!
When this code first popped up i sent my meter to abaco and they said it was bad! So i replaced it with a brand new abaco! Problem still there after new maf installed.
Steps I've done to correct it!

Changed computers
Made sure I'm getting the right voltage at maf with key on engine off
Checked continuity from Maf harness to comPuter plug.
Re did pins c and d on the maf harness straight to the computer
Re did all grounds added more
Replaced iat,vss,and ignition switch

I have no idea where to turn next! Please help the only thing I can think of is I have another bad maf???

What else am I missing
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Old 05-17-2012, 12:51 PM
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i tested the pin c on maf harness while running got .3v but on pin d blue/orange wire i get zero volts i even get zero volts at the computer?? is my computer bad???
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