After clear the code with my autoscanner I have run for one week 150 miles there was no any code found, and I went to the shop and the same tech Tech created the Service Engine Soon ligh with code p1860.
It is absolutely not due to machenical problem but due to either one of :
The PCM commands the solenoid ON (90%) and the voltage feedback remains high (B+). Or voltage feedback remains low (0 volt).
How to check the cause and fix it?
Thanks for your instruction and help!
have the same problem?
Saturday, January 23rd, 2016 AT 11:00 PM