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1983 - 2012 Ranger & B-Series All Ford Ranger and Mazda B-Series models

Idle problem returns!!!

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Old Sep 1, 2010 | 09:21 PM
  #16  
hillbillyford's Avatar
hillbillyford
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3rd times a charm, right? I picked up the Motorcraft IAC valve today ($98) and got it on this evening. Took it out for a ride long enough that if it was going to act up, it would have, and so far, so good! Time will tell the tale though............
 
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Old Sep 2, 2010 | 08:24 AM
  #17  
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martin_csr
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Originally Posted by hillbillyford
...
The reason I thought maybe something was causing the parts to go bad is my check engine light is on, and my code reader says the code is 1401, which according to the book that came with the reader is high voltage detected at the EGR DPFE sensor. I'm no electrician, so I thought maybe there could be higher voltage running through the system somehow that might cause the IAC valves to go bad, and might also explain the blown fuses and dash bulbs...
I would look into troubleshooting the 1401 code. I don't really know, but I'd guess it's a separate issue from the IAC... just a guess.
You could clear the code then see if the CEL comes back on.
 
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