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From the 2015 Conventional owners manual. Not sure what year/years you are running look on the bottle to verify it is CJ-4 aproved. " Use of API CJ-4 grade engine oil is recommended to achieve optimum performance of the DPR."

No problem, thanks for letting us know what you found.

Check the wire going to the fuel cut valve, it is a one wire valve as it is case grounded. If you have dealer software you can command the valve on and install a test headlamp and verify it is getting good power. The valve essentially opens to allow fuel to the 7th injector. If the computer sees...

I have never heard of re-building a DPR, and would not suggest it. Spec for the JO5 DPR back pressure is 16kpa or 2.32PSI not 3.3 You are technically already out of spec, and I question any re-building of a dpr. You state the DPR pressure sensor was already replaced so I'm assuming that is...

Is there soot in the tailpipe? You said the rebuilt the DPR. Did they clean it?

This is the best I could come up with, my UD info is limited. The flash codes are almost identical. I would inspect the temp sensor connections closely on the harness side for broken wires. If possible load test the wires from the ECU to the sensor. It could be a software issue as well. Your...

Like Greasytshirt said, it will learn itself. It is not critical. I know some guys that never do it. The problem with it is that the instructions are incorrect in DX2 and the old DX. I have it in my notes, but cant remember off the top of my head. I believe it has something to do with the key...

With that high of fuel temps and that low Ma on the pump current. I would suggest replacement of the pump. While I cant guarantee that this is the root cause of your problem, I can guarantee that pump is on its way out. When you take the pump coupler out be sure to inspect it closely for cracks...

Glad I could help, thanks for letting us know what the problem was:clapping-happy:

Does it have any other codes? Do you have access to DX2? What is the max fuel temp? At idle what is the "pump current target final value" when up to temp? Did it also set a P0088? Sometimes if the pressure limiter valve opens when it sees high pressure it will nor re-seat and bleed off pressure...

Standard voltage at the sensor is 4.5-5.5 v. I would rule out all connections and load test the wires from the ECU connector to the Inlet DPR temp sensor with a headlamp to verify they will hold a load. The Exhaust gas temperature sensor 1 shares a ground with the Exhaust gas temperature sensor...

It's a fifteen seventeenths.

You will need 2 left handed metric crescent wrenches. One to hold it, and one to break it free. You can go to Autozone and they will let you borrow the tools if you purchase the fluid from them.

Example of a standard PM sheet used at a dealer.

Maintenance poster.

Yes, the drain plug is 15/16, the torque on the drain plug is 30 foot lb's, there is a fiber washer that goes on the oil pan drain plug, I would recommend replacing it every oil change. Their cheap insurance. There is one oil filter, one primary "drop in" fuel filter, these are the filters you...

So the short version, what you have tapped into there is the turn signal control module. The back up fuse in the cab powers the back up switch, the switch in turn closes the contact and sends power to the back up relay that is outside the cab, above the batteries in the external fuse box. From...

Year???. I have no idea what a DVR system is. Where is the location on the vehicle you need the wire to be? In the cab?