Need Help Guys, VVT code after AutoJen vamshaft install

1slow370

honestly if a shop doesn't have the fsm and is going to take your motor apart, go somewhere else because that is a really bad sign. It sounds like they screwed up the initial install and tried to operate the vehicle with the parts and sensors out of alignment which has resulted in other parts failing, such as setting the position sensors wrong enough that the vvel actuator was trying to turn through the stop overloading the servo drive in the control module and possibly leading to an over current situation on one bank that has damaged the sensors and wiring (each VVEL actuator can pull 40 amps at full dead load on the stops enough that you can see a witness mark from the torque on the shaft when it goes to the stop on the head). Most shops that reuse the vvel actuators on a built engine either mark the position of the actuator link and the control sensor before removal which will get it close enough to run without codes when fired back up, or perform the reset from the minimum lift position which leads to a 5 degree error in actual control shaft position but usually works. If you have a set of the factory actuator position keepers from a pair of new vvel actuators, or use a digital angle gauge you can actually perform the factory reset per the manual while reusing the old actuators and get factory accuracy on the control shaft position. I outlined the process in other thread.

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