Vgt position sensor/engine speed sensor

[dpacella]

I have a 2007 Aset AC427 engine.

I have codes for VGT positioning sensor and Engine speed sensor.

I follow the instructions on my V-mac III service manual.

Both sensors checked out fine and the continuedy test was good with both harnesses.

But pin 26 off the J2 of the ECM was no where near 4.9-5v for vgt positioning sensor.

There is 12v going to the ECM

I swapped out the ECM with another one, same results.

Im thinking it might be a grounding issue?

If anyone can point me in the right direction, I would really apperciate it.

thank you

Edited April 2, 2017 by dpacella