What year truck came with the ptm1 pcm? I have and e99 and wonder if this pcm would help anything. Thanks,
Chet

 

Are you running a chip? What pcm do you have now. Not really that familar with the differences but may want to check out this thread: https://www.ford-trucks.com/forums/1...-pcm-swap.html

Living in CA you would want to make sure it doesn't set a code for the smog checks??

If you have the same DPC # on the pcm you might be able to get it flashed from php or dp tuner. Might want to shoot them a message.

 

The PMT0, 1, 2 & 3 are for a 2001 49 state automatic.

Some have said the PMTx gives better shifting and easier starts. I can't vouch for this because I went from an XLE4 (DPC402) to a PMT1 (DPC422) with tunes. I couldn't really see any big difference in the PMT1 in stock tune. Hopefully others will chime in.

If you are thinkng DP Tunes talk to Jody first. He has the ability to work with any PCM. He can even flash most, if not all, PCMs to a PMT1.

 

he may have the ability to flash to pmt1 but he won't do it......

 

I think someone told me that you can monitor more parameters with a later PCM using the AE. Later than are early 99's anyway.
Does anyone know if this is correct?

 

All the same parameters can be monitored.

The only test the E99 PCMs will not run is a Cylinder Rotational Velocity Test (PERDEL-Per Cent Deceleration).

 

The torque converter apply/release strategies are about all you'll notice besides a slightly later 3-4 upshift.

The engine should run nearly identical (from what you'll be able to tell).

Unless you absolutely can't stand the way the truck shifts now, there's really no reason to change PCMs.

The PMT1 (real, honest to God PMT1 computers) were put in trucks for a VERY SHORT time before PMT2 came out. As for differences there, unless you tow in mountainous terrain often, you'll never know the difference. Most aftermarket tuning companies put PMT1 programming on their 4-bank chips for DPC-422 boxes (hardware code).

As was explained above, if you have a CA-emissions truck, you may need to find a similar 99.5-01 PCM to switch with. Not only that, but if you have emissions testing in your area that requires a diagnostic trouble code check, you WILL fail. What is your current PCM code?

 

Guys first time back. Doing honey do's. I bought this PCM from Jody years ago. I never got around to installing it. When I put in my JW trans, or John did, I got a F5 with 9 or 10 tunes. I was just wondering if this would be a better PCM with my F5. When John put the F5 in my truck he took the top off, metal top, and never put it back on. So I'm not sure what PCM I have. Its an early 99 cc 4x4 lb. The PCM I bought has the 40T tune installed on it with some better shifting is what I wanted at the time. There was A guy on here years ago that said that is all I would want. Boy was he wrong. PMS always takes over when you get on this site. Especially when I use to build big blocks in the 60's. Anyway I was just wondering if it would be worth changing out. I also thought about sending it in when I change to stage 2's later this year and have a tune put on it in case my F5 goes out. God bless,
Chet

 

My stock PCM is PMT-1. I also have forged rods so it may be only the beginning of the '01 MY that have this PCM.

 

You cannot flash a DPC-422 with a DPC-402 calibration and it run properly. If he is running chip and wants to use the PMT1 pcm he will need his chip reflashed to use the PMT1 computer.


See my above response. It's not a matter of won't if you know it doesn't work. Tried it, doesn't work AT ALL. It does all sorts of goofy things.

Editing my post to inform everyone:

You do not need to upgrade PCM's to an late 99. It's a waste of your money. Jody has been able to tune the DPC-402 to act the same without having to first fix all of the stock PMT1 tranny issues for over 3 years now.


Diane

 

The only reason it shifted better is because it had a different tune on it from stock. With PMT1 tranny patterns Jody had to go in and change to make them shift better. The only reason PMT1 was ever used as a base was for its fuel tables. It's just a favorite of many to use over PMT2 & 3. PMT2 & 3 have even worse stock tranny patterns.


Diane

 

I talked to Jody awhile back about the same thing. Only reason I wanted to go later was so I could read rotational velocity (something you can't do with an early PCM). I had also heard the PMT's were bad on transmissions. I asked him what PCM code I ought to go with for the least amount of trouble until I could afford tunes and he said to go with an NVK4... worked great so far and I love the tunes I have now. In regards to tuning, it's all changed when you put the chip in, early or late so it doesn't matter. I think the only thing that comes into play is the configuration of the PCM in regards to your truck... and that's what Diane already said so, yeah. Hope that helps!

 

Always forget that about AE. You could always just do a CT test with the XLE PCM. Its really the same thing. You just don't see it in nice graph bars.


Diane

 

Yeah, I'm just retarded in the way that I like to know HOW MUCH is it off... either way, I now have a spare PCM so I guess that's another way to look at it.

 

I have experienced this a few times. I can't see trans temp in degrees on my 99.5 but can on either one of my 2000 model trucks. I think the same goes for TC slip actual and maybe one or two other items as well.

I lie to AE and tell it that my 99.5 truck is a 2000 model year and everything seems to work fine. I can see trans temp and TC slip and whatever other stuff might be missing from the 1999 menu. This leads me to believe it's an AE thing vs a PCM programming issue.