General Supercharger Thread

No. I shortened it to reduce back pressure. My mods increased boost pressure and I want to stay in the low 12's.

 

It failed to write & then went to 7x% then stalled & skeered the shit outa meeeee

 

New AFE intake is out for the maggy equipped rigs.


https://afepower.com/afe-power-50-70114r-momentum-gt-pro-5-r-cold-air-intake-system

 

I might try that, I sent you a log...hopefully I'm wrong, but looking through the numbers I snapped this morning...I saw 15.0 on stock sensors with 9.2 on the boost gauge...playing with fire

Yeah, I have some fancy finned ones that dissipate heat and a shiny new welder to try out...but taking those damn headers off is a bitch...

 

Wow! Be safe!
Are ARH headers longer? What about before primary cat in mid pipe? Stall far away.

 

Magnuson only! I can’t believe the lack of inclusion. I’m calling my senator. Wonder what the ID of the tube is?

 

They are a bit longer, check out the comparison with JBA in the link below. I could try moving the sensor further down to the midpipe, but if I'm going to weld in a bung, I'd rather use a primary tube.

https://www.tundras.com/threads/american-racing-header-install-and-review.47711/#post-1236682

 

Well after getting my last plate stolen I decided to go non sleeper mode. Truck is already loud with DD when on it so I figured why not. Most people probably won't get it but performance guys will lol

 

I'd guess same as the maggy box since they mention no tune needed

 

Kinda dumb then. I bet the magnuson box with SABM, AFE filter and air accelerator performs as well if not better.

 

Agreed!

 

Which Maggie? Is that for TVS 1900 or both?

With mods it looks like this gives an opportunity to add the Stillen nozzle for the Maggie crowd.

 

For sure fits the 1.9 not sure of the 2650 but if they utilize the same box as before I would guess it would fit that

 

It should fit both. When I transitioned from the 1900 to the 2650, there were no changes required to the intake with the exception of having to rotate the throttle body back to the factory orientation due to the bypass valve location. This can be seen in the photos in the first post, albeit that the TB on the 2650 is from an RCF. It's also mentioned in the install instructions.

 

Just so I understand you correctly, you guys flashed the flex fuel tune into the non-flex ECM? And now you are trying to overwrite that with a non-flex tune?

If that is the case, it makes sense that you cannot overwrite the FFV tune with the non-FFV one. HPTuners looks at the calibration IDs and says that they are incompatible. Otherwise you could just write a non-flex tune into the flex ECM in the first place, there would be no need to swap ECMs.
If I were doing it, I would’ve flashed a non-flex tune into the non-flex ECM.
I don’t understand why it would’ve let you flash a FFV tune into it in the first place, but now that it is in there, I don’t know what you can do, other than get another non-flex ECM and flash a non-flex tune modified for a supercharger into it from the get go.
Again, I’m not sure I fully understand the circumstances, but there was no need to flash a flex tune into it. If it was done for testing, the truck would’ve run even with the NA tune that was in the ECM already, it would just be a bit rich from the larger injectors, somewhat compensated for by the larger intake pipe diameter.

 

I was worried I'd mess up the motor without a SC tune & did not know there would be issues.

Live & learn, not in a hurry to buy another ECM or 4 credits especially seeing as it's running great. Is there a reason I can't put the original read back and start over?

 

Was the tune you wrote the ffv one?

 

I did a quick search and it seems no one here has used a Aero Force Interceptor gauge. I have used it in the past in my 06 Silverado SS w/MP112. I had a O2 Wideband and boost hooked to it. It s a multi-function gauge that can read a lot of sensors like a scanguage and cycle through a preset of those sensors. I usually had Boost, AFR, trans temp, IAT & engine temp cycle through.

https://aeroforcetech.com/

 

It was my last tune before I got the non flex so yup.

 

Ok. Makes some sense based on @ViktorG summarization.
I wonder if you can explain to HPT what happened. As it seems like it would be a HPT code not letting it happen.

 

This is uncharted territory for me (writing FFV tunes into non-FFV ECMs and vice versa), so unfortunately I don’t have any idea of what would and wouldn’t work.

 

Would you think there would be an issue writing the original file back and if there were would it fail like writing the tune did (and not do anything)?

Thanks

 

Well, the original file (I’m assuming you are referring to the stock file you got from HPTuners for the non-flex ECM and sent to Toby to modify) is no different than the modified one Toby sent back to you (from the ECM’s and HPTuners’ perspective). It’s the same calibration file, just with different parameters.

 

Nope, I'm talking about the read I took before I did anything to the ecu. The origin state it was in.

 

Just to make sure we are on the same page, you don’t “read” the file from the ECM. HPTuners reads the calibration ID from the ECM and gives you a matching stock file for it from their database. No data/parameters are read from the ECM. At least that’s how it worked when I used to do tuning, maybe they have the ability to read the data from the ECM now, @snivilous could chime in on that, I haven’t tuned anything in over a year.

 

In any case, all you can do is try at this point, I have no idea what can and cannot happen with the weird state the ECM is in right now.

 

Thanks

 

I got the stock file for the new ECM after the calibration for the previous (flex fuel) ECM had been flashed onto it. I don't understand how it was able to flash it at all when the files are different, the ECM year is different, the VIN on the ECM is different, essentially nothing is the same between the two ECMs. But somehow it took the flex fuel calibration, and that apparently made it not want to take the non-flex calibration (albeit he's only tried the one I modified and already copied over all the values from his previous tune) even though that calibration is what HPT downloads for it.


@e30cabrio I think it's worth a shot to flash the completely stock file for the new ECM and see what happens. I doubt it will work, and worst case you have the original ECM you could drop back in. And best case it takes it and that somehow allows it to receive the modified version for the supercharger. But it's anyone's guess as to what will happen. It seems to be anyones guess as to how it was possible in the first place

 

I'm grasping at straws here, but is there a way to reset the ECM in a sort of way - such as when folks have had a failed read and bricked their ECM? I don't really want to suggest purposefully bricking the non-flex fuel ECM just to test it, but would that put it back in to a state that would be more likely to take the non-FFV, N/A file? Then work up from there?

 

When I've flashed ECUs, with either HPT or VFT, I've noticed that in the progress bar there is a dialog that says "erasing". I suspect that the information is first erased, then whatever you're writing (the new tune) is then written. So when an ECU is bricked, it's because there's no "program" to run the engine. In most cases that I'm aware of, when an ECU is bricked, a resistor can be used to jumper two points on the circuitboad which places it in a state where it can accept information (tune) and be recovered.

Cell phone and computer storage is partitioned so the last operating system (tune) remains as the new one is flashed to another partition so that if something goes wrong it can revert back, like when you do a restore on your computer. Our ECUs don't have that extra back-up storage or extra partition.

Our ECUs are like Etch-A-Sketches, you can't draw a new picture without erasing the first one beforehand.

I know that none of this explains what @e30cabrio experienced, but this is how I picture what happens when we flash, and sometimes get bricks when there's an interuption or bug of some nature, and the tune doesn't get completely written.

I'm not an expert here by any measure, I just thought that this might help some to kind of "visualize" what seems to be happening and why.

Thanks for listening...