Hope this is ok to put here.

 

I wanted to put the history and semi build up of my truck so far for both record and might be able to help others some how. 

 

So, I have been a dodge fan for years, partly because my father works at a dodge dealership and because the only non dodge product we have ever had in the family was a mid 2000s Subaru Legacy. My first time driving anything was when I was like 3-6 years old, my father let me steer his Jeep Grand Wagoneer down the road. We actually still have that jeep but it has fallen into disrepair because of reasons. I personally have had a 1999 Jeep Cherokee (on loan from the parents), 2001 Dodge Ram 1500 (was my first vehicle I could call my own, sold a few years ago), 2001 Dodge Ram 2500 (nearly my dream truck, needed to be a sport to be my 100% dream truck), currently also own a 2019 Ram 2500 (needed because I chose to start sled pulling with the 2001 Cummins and I needed a second vehicle). Also have a 2016 Yamaha Stryker for a motorcycle.

 

So this was the morning after it was dropped off to me in 2015:

 

I actually bought the truck off of a classmate of mine so that was a fun surprise.   

 

And so began my foray into the world of diesels.

 

Unfortunately, previous owner didn't take good care of the truck. No power steering fluid, and it was really low on oil, like half of the required amount drained out my first oil change, and the steering was really all over the place. Also, the exhaust was cut off right at the end of the cab, and the mounting rod that attaches to the tranny had broken off allowing the exhaust to just rattle against the tranny crossmember. So I swapped it to a set of MBRP cool duals.              Out with the old

 

 

In with the new.

 

Few months later gave the truck a bath. 

 

 

 

Also after, digging through my photos, I don't take a lot of photos of the projects I've done. Or I cant find them. 

First big issue was that when I went and got new tires for the truck, the place that was doing the alignment broke my nv5600. Unfortunately, said place is a regional chain in the northeast and gave me $500 as compensation after the company that rebuilt the tranny said that they had seen this kind of failure quite often. they forced the shifter into a place it wasn't supposed to be and separated the circular thing from the actual shift rails. Top right corner is where it was disconnected.

      

 

So i used this time to get a fresh rebuilt tranny, rebuilt driveshafts, a Valair dual disk clutch and new shift tower.

I mentioned this earlier dont remember what thread it was but a second pressure sensor or high bar MAP sensor for boost would help normalize or remove some of the issues. I get the reasoning for using the pre existing MAP sensor but with fueling based on boost and finding such inconsistencies with them, it might be worth the extra sensor and wiring for the accuracy that would be gained.. 

1 hour ago, Silverwolf2691 said:

I mentioned this earlier dont remember what thread it was but a second pressure sensor or high bar MAP sensor for boost would help normalize or remove some of the issues.

 

I'm not sure how that would work being the high bar MAP sensor will be miscalibrated for the voltages provided to the ECM. 

Quadzilla only uses the high bar map/boost sensor to calculate fueling from boost then sends info to ecm.. If Quadzilla uses the factory MAP like i think it does.. Factory MAP used for boost fooling..

 

I dont know.. 

 

I also have small gripes with the app itself but thats small potatoes right now.. Mostly fit and finish..

You could tag @Quadzilla Power and discuss those problems.

 

Me personally the display layout is poor and over lapping. Doesn't layout properly on my Samsung S21

 

Even on my tablet, there is overlapping and the level up and down buttons aren't where they should be..

 

A few of the other things would be a shortcut to tune selection or a tune selector in the gauge area, a larger target for the settings gear for sure.

 

Music control, just play/pause, forward, and back would be like the ultimate for me. I use my tablet as my radio with my Spotify play list and switching apps to change songs is frustrating (the pull down menu while driving usually ends up not skipping and opening the app anyways for me).. I also realize that this kind of integration doesn't seem to be simple, probably quite the opposite, so if that's a pipe dream I understand.

Yeah level up and down are too small on my phone and always getting the gauge selection box.

We would like to heave the cores within 60 days.   If you would like to get them rebuilt with larger nozzles call in and talk with Mitch or Lenny.

 

I have not heard of a slow map sensor.  I will let someone else answer that.

Hello. 

Can you please forward a screenshot of the screen overlapping and or any other issues you are experiancing to our tech email so we can look into the issues?

tech@quadzillapower.com

Thank you.

With all due respect @Quadzilla Power, this is the same over lapping and level button displacement that has been around since the app came out in like 2018..

 

On the phones its worse with gauge overlap than my tablet.. @Mopar1973Man might be able to get a screenshot easier than I can right now.. tablet is at home..

 

@dieselautopower, I'm not sure if slow is even the right word for what I'm experiencing, but my Isspro's have 4-6 psi on them before the Quad reads 1 psi, but once like 15 psi comes around (the rarity it does..) both seem to match. I might take you up on the idea I think you presented earlier about the fuel pressure sensor used as a boost sensor to get a data log of what's going on..

I believe the QZ and Isspro Sensors use the same scaling.

so just swap plugs?

you could do that.

@Quadzilla Power here is the overlap issue. Included phone info.

It worked.

I didnt get a stabilized boost reading.. not enough places to do so on my trip back to work... 

 

In case some one finds this in the future, each vertical step is one psi and this is a severely cut down set of data and it was still 700 data points. Fuel pressure plug from quadzilla is plugged into Isspro pressure sending unit. so fuel pressure is "actual boost", boost pressure is from the factory map sensor.

  

            |3rd|             4th gear         |      5th       |       |       5th still?        |     | 2nd |   3rd  |   4th   |   5th   |                  |                           2nd                  |     3rd    |

 

hope that makes sense..

                 

Tried for a longer boost hold to see if things even out but I think I have too many transient boost locations and not enough locations to hold boost.. Need to get up on the highway, but diesel just hit over $6.10/gal here.. We'll see how this goes..

 

This is 200ish time stamps so about 50 seconds-ish of data.. Maxes at about a 4-5 psi differential between sensors.. Same setup as above.  

 

 

I don't know weather to call this a slow map sensor, a misreading sensor, or what..

 

All I know is I need to do something because this is making daily driving interesting.. Truck has no get up and go.. Even more so when cold.. 

So I would ohm the MAP wiring back to the ECM plug using an ohm meter. Verify that all wiring is les than 5 ohm resistance. Then double check ohm between the wire and body ground which will double check the MAP wires are not shorted to ground. Remember for both test the ECM and MAP plugs have to be disconnected. 

 

Then the next step could be a Quadzilla issue if the boost fooler circuit is damaged. Might consider sending the Quadzilla and wiring back for testing. Even better yet give Quadzilla a call and see what they have to say for tips to diagnose this. 

If im going down that path, then i should let you know i did have the wires break last time i had the head off i think, or prior to that.. cant remember. So i soldered a new pigtail on. Could that have caused issues?

Hoping to get to work on my trucks after tomorrow. Have 5 days I gave myself between jobs..

 

Want to finish the install of injectors, pushrods, and valve springs and have enough time to tune before the first sled pull. On the list is also ohming out the MAP harness and planning up a fix for a fuel leak from the hoses breaking down going into my lift pump.. Thinking of hardline along the frame to braided line for the motor/lift pump to account for movement..

 

Mother Nature isn't looking cooperative the whole holiday weekend though, chances of rain Sat-Mon.. hope not..

 

If I finish with my Cummins, I might start on the front end and finish rebuilding the exhaust of my little green truck.. Weather permitting..

Been mulling over the MAP sensor issue ive been having.. 

 

Been trying to figure out how a MAP sensor functions and i wonder if the resistance is too far in one way or another but still within tolerance. And because of that it takes some time to register boost.. 

 

Spit balling is all..

I would do the testing for either the P0237 or P0238 codes. Basically the test would verify the wire from sensor to ECM for all three wires (+5, sensor, GND). The the next test is wire to ground. It should show infinite ohms or (open connection). Your also going to verify the 5V signal and verify its correct value of 5.00 Volts. The ground signal has to be verified be sure there is something to bias the signal from ground. If that all passes with flying colors then the sensor or the ECM is to blame. The sensor uses the 5V and variable voltage with ground bias. Either the sensor is lazy and failed within specs or the ECM is not sensing the voltage correctly.