Mopar1973Man

Check your PCM power wire for BD noise filter and remove it. Make you have a solid 12V at the power wire of the PCM. One other member @pepsi71ocean had this problem cause by a poorly installed BD noise filter.

Not lift pump relay the Vp44 relay.

Thank you! 😁

Fuel pump relay is in the PDC which controls power the the VP44 injection pump. Yes a bad relay will set a P1689 code if the relay is bad or no power given to the VP44.

Try unhooking the Quadzilla CANBus lead. See if the Quadzilla causing the CANBus to fail. Another to check the fuel pump relay it could cause this P1689 bad power contacts.

My adventure with Thor was similar. I was having injector issues. Just got to make the first step and call and see what @dieselautopower can do for you.

My last one was a Ford Pickup, and I laid waste to him at about 110 MPH running Beast. Yeah, these trucks can run and really pull like a mule. Beast I just tucked in the garage today for his long nap. Beast can sometimes fry the tires just by accelerating up to highway speeds, like getting up to 80 to 85 MPH for I-84 here in southern Idaho. Now I'll tell you engine heat will not affect the PSG. If you take a look at... The top lid has an air space between the top and the PSG circuit board. The PSG circuit board is actually heatsinked to the fuel side, hence why I asked about the fuel temperature being high. Fuel temperatures will be hard on the PSG, and also the fuel being above 140℉ or 150℉, you'll see your fuel filter plug up faster with asphaltenes.

You might end up eating that VP44 but just maybe... I'll leave the lights on for ya and just post up.

Depends on the location of the straw for the temperature. Hopefully, your straw is in the main fuel tank and not the sender basket. I'm assuming you are in the main tank area, being the 1/8 tank drop in pressure on hard sloosh. That would net you cooler temperatures in the fuel, being the hot fuel is kept in the sender basket. Is your warranty still good on the VP44 pump?

If possible, maybe you could try unhooking the wire tap and see. No need to remove the entire splice, just unhook the wire. I think it's a heat issue on the PSG. By chance, what does the Quadzilla show for fuel temperatures?

Did you do a W-T ground wire mod? Not good to leave a battery out. I know these trucks will run on a single battery but the passenger side typically is the source of ground for VP44, ECM, and PCM. W-T ground mod would move it to the driver-side ground for the VP44 and ECM but the PCM is still on the passenger cable. No such thing as a rebuild PSG unit. It's either USED or NEW. Sadly rebuild PSG is a poor choice being that it most likely not calibrated to your pump. The other part is Bosch Certified Rebuilt pumps it is a REQUIREMENT to replace the PSG with a new unit and be calibrated on the test stand. Most likely a bad solder joint in the repair of the PSG and the heat is causing a solder joint to open up. Yeah, I've seen a ton of people doing transistor replacements and weird home repairs but did they ever calibrate the repaired PSG to the mechanical part of the pump? No. This where problems start.

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I spent some time this morning tracing out the brake light function from the cab to the taillights. Then I found out the taillight loom I got from a 2007 will NOT work. It's a single taillight setup. Problem I figured out that there are two taillights in the wiring diagram and then started looking for the white/tan lead nope. Not there. Now I'm on hold, waiting to see if the salvage yard has a 2005 wiring loom so I can get the right wiring. The project is on hold for a bit to sort out the electrical for the taillights.

SOLVED Make sure you get an 03 to 06 loom for the taillights. Funny part is 07 is single bulb taillight and 06 is a two bulb taillight with separate brake and turn bulbs. Already calling for 05 loom might be good swap at my salvage yard to do a swap.

@Tweety Bird and I needed to run out and take care of a few things. I hopped in the shower and got cleaned up, and with fresh, clean skin and shaved, I started doing my makeup for the day. I did standard black makeup and wore my blue wig. Nothing fancy by any means but I've wowed another store worker today. @Tweety Bird and I stopped to get breakfast out, which I know of an awesome place for breakfast burritos. Old Towne Market has a small cafe in the back of the store. The gal working there I knew the gal at the counter; she took our order and handed the ticket back to me to pay up front. Ok. The gal at the till has kind of a blue-gray hair. I told her it looked awesome. She commented about my appearance. She was so intrigued about my appearance that she started asking questions then I revealed the cancer story somewhat, and she loved the fact I continue to do makeup and dress the part. Still, to this day, I get all kinds of stellar comments about my appearance. At another stop, I picked up a bit of fuel in Minnie. Now I'm pumping fuel in Minnie, and the older gent pulls in with a Ford 7.3L 1 Ton that looks awesome and is running great. Diesel man, I am. I gave him a kind comment about his Ford truck. I walked over after pumping my fuel and started a conversation about diesel dressed up as Titanium. This gent, being kind, basically stated strange-looking but hella knowledgeable. At that point, it didn't matter what I looked like, but the facts of my knowledge to help this old man fix up his 7.3L Ford floored him. I told him about his rear tires being over-inflated and how to fix it with my math formula. I showed him my phone from the website. Then I told him to consider replacing injectors because 176k miles is a bit long on factory injectors. He was very thankful I just happened to be there to give him info, This is why I don't care if I'm dressed up as Titanium, Mopar1973Man, or just Michael Nelson. I steal the show anywhere I go, any way I'm dressed. Titanium is my favorite way to be in public. No matter where I go, I'm always finding someone to just wants to ask why. Now, when the cancer story comes forward and the fact I lost all the hair on my head and found a way to enjoy life yet with cancer and still look good. Remember this is why I will be getting married soon. I met in the West Portico building in Meridian, ID, and had the luck of meeting her twice It was Suzanna who asked me for my phone number. There are just too many great things that come from my wonderful makeup work and the person I am! Would you stop doing this? Or would you be the one like me who wants to see how far down the rabbit hole this goes?