Re: Astra G Z17DTL 2003 Boost Press Sol valve pulse ratio question Archived Message
Posted by mark carter on July 18, 2008, 8:50 am, in reply to "Re: Astra G Z17DTL 2003 Boost Press Sol valve pulse ratio question"
Hi, when the duty cycle is high the ON time is high and when the duty cycle is low the ON time is low. The result of the duty cycle will depend on the set up of the actuator ie; normally open or normally closed. If you fit a mityvac to the output of the modulating valve and use the "actuator" section of your scan tool to work the valve you will see the change in output. With regard to the fault code, I have known P1125 to be the APP sensor on GM motors in the past and added the info for your benefit.
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