Software version 68733601AA - 98 MPH speed limiter

[Joey1167]

Edited my above post. After speaking with the tech once he completed the PCM flash he noted it was a flashforward not a flashback. From AC to AD PCM flash. He mentioned there was an over fueling issue with the AC map causing melting of cats. I have updated my post reflecting this. -Joe

 

[gram10]

Edited:
Alright just got a small update from the Tech who came from head office in Windsor, ON. They are doing a PCM flashforward from an AC flash to AD. I wasn't provided the full flash code at this time.

This is to prevent over fueling causing the melting of the new catalytic converters. I asked about top speed or any other performance changes, but the tech did not seem to think it would affect performance.

These flashes will only be done if you are having issues it seems. I don't believe it will be across the board for all RHO owners at this time.

I did ask about a future AE flash update going forward and was told that unless it comes from a recall or if the owner has issues. It will stay in the AD flash even after a new flash comes out.

Hope this helps those going forward. I will update if I can get the full PCM flash codes.

how do we find out what flash we have?

 

[Jimmy07]

Edited my above post. After speaking with the tech once he completed the PCM flash he noted it was a flashforward not a flashback. From AC to AD PCM flash. He mentioned there was an over fueling issue with the AC map causing melting of cats. I have updated my post reflecting this. -Joe

When you say from AC to AD, what’s the full flash number? Looks like yours is a Canadian build, so yours might be using NAFTA flashes, not 50 state flashes like the one this thread is about.

 

[tbolts10]

I've already ran a 12.57 @ over 105 mph.... I swear to god if my truck gets limited to 98....

 

[RamFan]

I've already ran a 12.57 @ over 105 mph.... I swear to god if my truck gets limited to 98....

You use a JB4 correct?

Chris

BTW how are the brakes

 

[tbolts10]

You use a JB4 correct?

Chris

BTW how are the brakes

Yep. They are pretty scary especially if you do back to back passes lol

 

[TXRHO]

I'm not sure if this may be related to this 98 mph flash business, but it is a RHO/3.0L HO specific recall. I believe it was mentioned in this thread. Its a safety recall that only effect 219 vehicle, and is searchable by VIN.

 

[rhinonow]

I'm not sure if this may be related to this 98 mph flash business, but it is a RHO/3.0L HO specific recall. I believe it was mentioned in this thread. Its a safety recall that only effect 219 vehicle, and is searchable by VIN.

where do we search by VIN?

 

[Jimmy07]

I'm not sure if this may be related to this 98 mph flash business, but it is a RHO/3.0L HO specific recall. I believe it was mentioned in this thread. Its a safety recall that only effect 219 vehicle, and is searchable by VIN.

It’s only for export built vehicles, so the flash should be different than this one, it would be an ROW (rest of world) calibration, like this:

 

[IdealRace]

So the original file on my truck was 6864178AE.

Witech suggested the update path was to 68733601AA.

Jimmy is there a way to backdate and flash the previously loaded software? So I can sniff all variants?

 

[Jimmy07]

So the original file on my truck was 6864178AE.

Witech suggested the update path was to 68733601AA.

Jimmy is there a way to backdate and flash the previously loaded software? So I can sniff all variants?

No. You would have had to download the 6864178AE efd file for the J2534 flash application back when it was the current version. Now it’s unavailable for download since it’s been superseded.

 

[IdealRace]

Ooh. Where and how do I download the “efd” file with witech?

 

[Jimmy07]

Ooh. Where and how do I download the “efd” file with witech?

In your tech authority subscription, instead of opening service library, go to diagnostic tools, then launch J2534 flash.

 

[tornis]

It’s only for export built vehicles, so the flash should be different than this one, it would be an ROW (rest of world) calibration, like this:
View attachment 7821

All RHO sold by official importers in Europe/Australia (AEC, KW for Europe) have a speed limiter due to Q rated tires. T rated (OEM 35 tires) are not sold or road-legal there (except if one gets special homologation ).