1. J2THEIZZO

   J2theIZZO Forum Member

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   I'm after a bit of help from anyone who owns a ABF engine and VCDS.
   
   Could someone check the duty cycle % of the ISV at idle and then at increased RPM (say 3,000+ rpm) - does the duty cycle increase or decrease with RPM?

    

   J2theIZZO, Dec 20, 2021

   #1
2. J2THEIZZO

   J2theIZZO Forum Member

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   Jun 15, 2005

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   I believe you can only get this info from the later ECU's, measuring block group 3 (4th window) if that helps anyone.

    

   J2theIZZO, Dec 20, 2021

   #2

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