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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29396
Experience:  GM Grand Master Technician 2007. 14 years experience.
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P0698 p0107 p2564 u0100. Just replaced van position sensor

Customer Question

P0698 p0107 p2564 u0100. Just replaced van position sensor and some glow plugs now I'm limping
JA: Which particular sensor are you asking about? And have any trouble codes been triggered?
Customer: Could those codes be triggered by a badvane position sensor or glow plugs
JA: What is the model/year of your GM?
Customer: 06 Silverado 3500 duramax
JA: Are you fixing your Silverado yourself? What have you tried so far?
Customer: I replaced the vane position sensor last week and the truck ran great. It is not a gm sensor though and I'm suspicious. While I was doing that I also replaced glow plugs 5 and seven. Now I'm getting the codes all of th sudden today. At first I could clear them. Now they're there with the engine off
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 22 days ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 22 days ago.

Hi there, I am Cam.

what are the code numbers you are getting?

Customer: replied 21 days ago.
P0107 p0698 p2564 u0100 p0700
Expert:  GM Tech (Cam) replied 21 days ago.

Ok so you have a problem not with that sensor but the 5 volt reference voltage that comes from the ECM. There are 3 different feeds and your issue is with #3. It sends 5 volts to the Map sensor(boost sensor), vane position sensor, EGR and the throttle pedal. What you need to do is clear codes, unplug each of these at a time and see if the other codes go away. If you have a scanner, you need to watch the #3 5V reference voltage and see what it shows. We have seen issues with the throttle pedal on this but it could be a short in the system or any of the sensors.

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