Codes

[01F350PwrStk]

Alright,i've got the following codes...
P0562 which says System Voltage low, second time ive seen this, what could be causing it? The batts are only a few weeks old and the alt. was changed a little over a year ago and seems to be working fine.
P0472 Exhaust Back Pressure Low Input
P0478 Exhaust back pressure control valve high
P0471 exhaust back pressure performance
P0470 exhaust back pressure malfunction
P1211 Injection pressure above/lower than desired(which i'm assuming is jut because of the programmer)

Could my EBPV be clogged? how easy is it to clean or how much is a new one?

Thanks,
01f350pwrstk

[01F350PwrStk]

BUMP Anyone? I'm kinda worried about the System Low voltage code, not so much the others.

[Deeslfxr]

Have you checked system voltage with a test voltmeter? Also see what the PCM reports for voltage, reading data stream with a good scantool.

[Deeslfxr]

Also I would clean the EBPV sensor and tube at front of engine above right exh. manifold. I believe you have a problem with the sensor as well as the valve itself. Good luck!

[01F350PwrStk]

How do you check the system voltage with the meter? I'm kinda new to the diesel scene. Also is there a tech writeup about how to clean the EBPV?

Thanks,
01f350pwrstk

[01F350PwrStk]

Also forgot to mention it was hooked up to a scan tool the first time i saw the system low voltage code, i was at the tranny shop,but he did not say what it exactly said only that it had a code for low voltage.

[Deeslfxr]

Originally Posted by 01F350PwrStk

How do you check the system voltage with the meter? I'm kinda new to the diesel scene. Also is there a tech writeup about how to clean the EBPV?

Thanks,
01f350pwrstk

System voltage is simply what the batteries see when the truck is running. There is a write up here somewhere but I am not sure where right now. If we're talking about the sensor and tube it's pretty straight forward. Remove sensor and tube, sensor is behind idler pulley mounted in front of HPOP reservoir. It's threaded into a fitting through a bracket. The tube is attached to the bottom of the fitting. Make sure you can blow air through the tube, if you can easily no need to remove it. Next look in the bottom of the sensor and make sure the opening is clear. After that it can be reinstalled.