Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Low Octain

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Old Aug 8, 2006 | 08:48 AM
  #1  
383TransAm's Avatar
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From: Wyoming, Michigan
Question Low Octain

My car had a full tank of 93 Octain in Nov. when I put it away for the winter and started my motor project.
It is now Aug. and the car still has the same tank of gas in it but it's almost gone and I have been fighting a Rich Condition for a week now.

In my prgm my low Oct. Enable MAP is 69.4kpa
My Low Oct. ESC Retard Disable Delta Enable is 11.1kpa
My Low OCt.ESC Retard Enable Knock Retard is 1.4deg.
My Low Oct ESC Retard Encresse Step Size is 50Count
My low Oct ESC Retard Decresse Step Size is 2Count

If my fuel has lost Octain by sitting in my car for so long will that make my car run "rich" ?
If I put in new fuel will that change any thing?
Old Aug 8, 2006 | 08:56 AM
  #2  
km9v's Avatar
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From: Beaumont, TX
Re: Low Octain

Always start w/ a fresh tank of gas.
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