Leaderboard

I had similar problem, thought it was vp, between changing injectors, cleaning up wiring, rebuilding alternator (can just replace with a good unit) my surging went away and later I did the WT mod and it runs even better now.

Not necessarily. I think that the predominant surrounding environment, the duty cycle of the truck, and the quality of the battery play a large role as well. I bought a 1991 Ford F150 4x4 truck new and immediately installed a Cummins 4BTA 3.9 liter engine. The OEM external voltage regulator was located in the right side fender well. After five years of driving in the vicinity of Leadville, Colorado (10,200 ft elevation) and four years of driving in Redding, California (100° everyday throughout the summer), the single battery was still passing load tests after 9 years and over

I had some similar issues as @Dieselfuture had. Had a problem with the 5v signal reference and AC noise border line high. Did WT's ground mod, new battery cables and clean everything up real good. I have trouble free for the most part for the past years. No more electrical gremlins. Maybe I better knock DF's wooden head.

Ok here we go. From pin to pin (matching color wire) there should be a perfect 0 ohms from point to point. Failure is 5 ohms of greater. Then you leave both unhooked and do pin to ground. This check for wires that are shorting to ground possibly. This should turn up INFINITE ohms for all test but if there is any resistance then that is a fail because there should be no connection to ground if both ends of the wire is open. We do have affiliate program with Quadzilla.

Which is possible too but typically when a VP44 go funny there is codes with it. Hence why I asking for pin to pin ohm test between the ECM and VP44. If the wiring is all checking out then you got to get another clue that point or give reason for expensive parts. Sad part is some times you have to let the problem mature a bit more to show its ugly head. Cutting out is electrical so I would say monitor your Engine Load number for sharp drop off. One of the perks about Quadzilla it doesn't have to be in the vehicle to watch live data. I can have my truck warming up outside and leave

I've gotta ask does this cut out occur also with cruise set? I got to know are you manual transmission with fly by wire cruise or automatic with vacuum cruise? What I like to see if your manual if cruise is set and doesn't happen then the problem is around the APPS. You could pin to pin ohm test from APPS to the ECM and the VP44 to ECM and verify the wiring is good. Still in all ECM controls what the VP44 is going to do. I don't suggest that at all. You could get a live data tool like a OBDLink LX or MX tool and then watch the live data on the CCD Bus. Watching the TPS values fo

Little secret Blue Top supplies parts to Redhead... Better to go to the actual source...

Only reason I went with RedHead was they are very close to me and they have good reviews. I like it when a vender is close enough I can scream in their ear if it's not right.

My wife was more than happy to oblige. But she lost the smile on her face when she realized I was not going to get under the truck.

Got the beasty out on the highway today for a few hour run. All good. It runs better than it has since I purchased it. Better than it has since I've owned it. The cracked manifold must have been contributing to the black smoke, becuase there's basically no smoke any more. The turbo appears to be acting like it should. I used to get over boost errors if I kept my foot in it too long with the boost up, but that's no happening any more. Next thing is the Quad.

The WIF sensor / WIF plug is sensitive to just the water touching the contacts. All you got to do is blow it dry and push dielectric grease into the plug.

I think I have beat all you guys..... I made it from Susanville, Calif. to Beavercreek, Oregon on one tank. Yeah, it's only 485 miles, but That was hauling a 3400 lb slide in camper. Don't ask how I did it .

Just got a RedHead on last month. It is just the stock replacement, but it is very smooth very steady steering. It so good I think I could have the job of painting the road lines. No leaks either. Bad part was I had it installed so I had to redo his shet work from Holbrook. Been going there since 1981 and I will never...... ever....... never......again.

I made it from Kuna to E Wenatchee to Kuna on one tank this summer, 853 miles. I even had 6 gallons to spare. Sure do love this 55 gallon tank