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2002 f150 5.4 liter

 
  #1  
Old 08-03-2004, 12:23 AM
flip1
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Question 2002 f150 5.4 liter

I Have Recently Used A Hypertech Power Programmer On My Truck
And Programmed It For 93 Octane And Used It For Awhile. Today I
Reprogrammed My Truck For 87 Octane It Seems To Work Fine But
The Programmer Keeps Telling Me I Have A Pffff Dtc When I Hook
Up. There Is No Check Engine Lights Or Any Thing Out Of The Ordinary.
I Can't Find This Code Nowhere Any Suggestions?
 
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Old 08-03-2004, 12:58 AM
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Sounds like a problem with the programmer. There is no Pffff code. All FFFF's would seem to indicate that the programmer is receiving all 1 bits from the error code data stream, or at least interpreting them as all 1 bits.
 
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Old 08-20-2004, 12:10 AM
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had programmer replaced thanks
 
 
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