ECM Questions
 

I have a ECM that is out of a 2005 F-250 6.0 auto. transmission that sounds to be the same basic truck as mine. The tag # on this module is 5C3A-12A650-KYC. The ECM module in my truck has a tag # of 5C3A-12A650-KNB and has been updated to the VXCF9N4 strategy. I purchased a Gryphon CTS that I'm currently running the canned tunes until I can round up the money for custom tunes and rollbacks.

My questions are:

1- If I return my truck back to stock. Can I swap this ECM for my present ECM and check to see what strategy it is programmed with ?

2- Will I be able use the Gryphon CTS to check the strategy ?

3- If it is a more desirable strategy to run, will I be able to use the Gryphon CTS and this strategy in the ECM become my new stock configuration and saved on the Gryphon ?


From the research I have done. These 2 ECM tag #are compatible. If you have any other information. Please let me know. I'm still a newbie and trying to learn as much as I can.

Thanks in advance.

Responces in Red

Put in other ECM
 

Thanks for the reply Jeremy. Yours answers were the one's that I had thought were correct, but I was just wanting to get a more educated opinion.

I came home today from work and read your reply and decided to swap them around. The 2nd ECM has the following hex codes:

ECM: VXCF4D3 TCM: TQCJO2D

I started the truck and it seems to run fine. I still have have all the PIDS available that I had with the 1st ECM and so far it has not thrown any codes. I checked to see if any appeared. I'm getting ready to take it for a test drive to see if it acts different and shifts okay.

Is there a way of finding out by the hex codes what the differences are ? I believe I have read that the last two digits have to do with those. The 1st ECM has the following hex codes : ECM: VXCF9N4 TCM: TQCI1NA

If there are differences that would affect the truck's operation, is it possible to have them corrected with custom tunes ?

Yes my '05 does have the MAF sensor and it is one of the PID's I can choose and it does give readings when selected as a PID. Hadn't looked to see if ABS was showing on dash. Hopefully will know more after the test drive.

:thumbs up yellow:

You won't see the ABS light turn on, but some XL trucks had 2 wheel ABS vs 4 wheel ABS. You may notice a different feel to the brake pedal when you switch to the other PCM if it is a 2 wheel ABS model.

Do you get a CEL for your EGR delete? With the old PCM vs the new?

Bill could tell us what the difference is between the "N4" vs the "D3", I don't have access to that information. Sorry.

I didn't notice a difference in the feel of the brakes. But on my test drive I was concentrating more on how the engine performance felt and the shifting of the transmission. I was also watching EGT,ECT,EOT, and TFT to be sure that there wasn't any unexpected increases.

I haven't gotten any codes at all since my EGR Delete. I left my EGR Valve in place. Neither ECM so far has given me any codes. I plan on driving it for a week or so on the stock level to see if anything arises before I attempt to run it on a canned tune.

Would the information Bill has access to be able to tell if there is a difference as far as the ABS being 2 wheel or 4 wheel on the original ECM compared to the 2nd ECM ?

I greatly appreciate all your help. Sorry if I seem to be asking a lot of questions, but I'm trying to become as informed as I can.

Phone Call from Bill with Answers
 

I got a phone call from Bill in response to an email I sent asking the differences and he told me that I had gotten the strategy with very minor differences to the strategy that he would have recommended to rollback to if I had ordered a ECM rollback. He also answered a few of my other questions.

The phone call was unexpected, but greatly appreciated. I had figured he would just send me an email reply in the next few days when he could squeeze it in. I will definitely talk with him again about getting the FICM reprogrammed and the custom tunes I'm interested in getting.

Thanks Again Bill if you happen to read this.