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Old 15-04-2018, 11:22 AM
Richard L Richard L is offline
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Join Date: Oct 2003
Location: England
Posts: 4,936
Default Re: Out of winterstorage: gauge is not showing spray bars

There are two conditions for the FAV to open:
1. the mechanical movement of the internal piston
2. The coil that actuate the piston.

You must test the FAV as follows:
3. Coil has have a resistance of 12 ohm
4. Test the FAV with a separate 12V supply. You should hear a click everytime the
5. Once this is established, you can plug the FAV back into the system.
6. Use the SYS umper
7. Only then if the FAV does not open, it could be the following:
a. Wire inside the Red harness plug may be severed or came loose
b. Only after all the above step, you can confidently establsihed the controller is not sending a full 12V to the FAV.

There is not need to any driving to establish this.
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