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Ok I appreciate all the help, without you I wouldn't have been able to pinpoint the issue this in depth. I really think it is something to do with the diablosport tuner writing the gear ratio to a...

Ok I see what you are saying, that makes sense then as to why the ratios it was calculating were wrong. So I tried to change it to 3.41 in the VCM scanner like you stated on the previous post and...

I will give it a shot let you know what I can come up with. I am once again out of town (for work, it is a busy time of the year), but will be returning Saturday and will be sure to give it a shot. ...

When I am able to get my hands on that bosch scanner, would it be useful if I were able to take a screenshot/picture of the scanner while driving in each gear to get sort of a "snap-shot" of what is...

I see what you are saying. I guess this is kind of an issue since HP tuners does not seem to support those PID's. I feel like I'm at a standstill without those values. I emailed HP tuners support and...

I will try all those and see what works, I'm really hoping it's one of those! It is interesting that it is calculating the ratios to be different. Unfortunately, I won't be able to try until these...

I uploaded a video of what happens when the car goes into limp mode just for reference. I also put in a video of something that I noticed started happening after the issue started. When I put it into...

Man I really was hoping that would fix it but unfortunately it didn't seem to help :( It continues to go into limp mode after 1 pull. It actually felt decent the first time I drove it after loading...

Hmm very interesting. I appreciate the continued help I will try that shortly and get back to you. The tire size is 245/45/20 which is a tenth of an inch off the stock 18 inch rim size (28.7" vs...

Ah, that makes a lot of sense. I did not realize it did not have an output speed sensor but now that you mention it makes perfect sense why these cars are so finnicky about abs sensors. I think you...

I'm sorry for the confusion. At this point I have picked so many people's brains on this problem that I forget what I tell to who. I did put the info in a previous post but I guess I should have just...

What has me racking my brain is the fact that I have replaced the transmission, tcm, valve body with new conductor plate in the old transmission, and the issue has not gone away but more importantly...

Understandable, I appreciate your insight. I will send their support an email and see what I can find out.

Ok I see. I have access to a Bosch scanner which should definitely be able see those. I?m not sure if it can log data but I?ll give it a shot when I can get my hands on it. Thanks for your help so...

The problems initially started when I reset the adaptives and performed an egs5x init in the special functions menu. When I purchased the car about a year ago, the transmission did not feel great and...

I appreciate the response. I did check this. The rear end is a 2.82 and I made sure the computer was programmed to that and the correct tire diameter for my tires was inputted.

Edit: Looking back...

Hi all, I have a 2006 charger rt with the beloved NAG1. I've posted a few times before about this but basically, the transmission goes into limp mode after going through the gears. It will get stuck...

Does anybody happen to have a stock tune file from a 2009-2010 charger or challenger? I would appreciate it, thanks!

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Above is log file - I don't see any info on the transmission I'm new to this so not too sure if I didn't record that data or I just cant find it..

I also can't seem to attach the tune...

I wish it was that simple :( I got the car in the air and counted how many drive shaft rotations were needed for one full rotation of the wheels. It was just under 3 and these either came with a...

2006 Dodge Charger RT with 392 engine swap
Using NAG1/A580 transmission & original wiring harness.

New:
-Transmission
-Valve body with conductor plate & sensors
-TCM
-Rear CV axles
-Rear...

Hello all, still wondering about this. If anyone has any ideas, please let me know. Also replaced plug and seals going into the transmission and checked for bent/missing/corroded pins in the...

Hi am still having issues with my Nag1 shifting in my 06 RT even after replacing the entire valve body/conductor plate assembly (aka electro-hydraulic unit) and trying 2 different new tcms. At this...

Ok so little update here - I somewhat figured out the issue. I bought the car from someone who was relatively clueless but one of the previous owners did a lot to it back in the day. Anyways, I was...

Hi all new to HPT. I have a 2006 rt and am having issues with the NAG1 trans. I did a EGS5X initialization as well as resetting the adaptives. Now the transmission shifts very inconsistently from 1-2...