PCM Code

[X JBM X]

So I'll be ordering this chip within the next couple days...

And a HUGE thanks to Cody for answering ALL MY QUESTIONS over the phone on Friday!!

Anyway, I went to the order form, and saw where I should input the code for my PCM, which is also something Cody mentioned to me over the phone (still fairly new to diesels)

So earlier today, I went out and went on a scavenger hunt for this code. I couldn't find it on the side of the PCM (yes, I most definitely located the PCM - 1" x 5" with 1 10mm bolt) and I couldn't see anything with a mirror and a flashlight.

So, I pulled it out. Unhooked the batteries, and then unbolted the PCM, turned it a couple times to take a better look. There is for certain NO STICKER on my PCM. There is, however, what looks like sharpie writing on the side.

The sharpie writing looks like it says 7214, although it was upside down, and whoever wrote it had terrible handwriting.

Is the PCM code crucial to getting me a tune???

What do I do next?!?!?

Thanks!

[cleatus12r]

Well the RIGHT way would be to actually have the code read off of the PCM binary....but that takes shipping the PCM back and forth or taking the truck to a shop that has a scan tool capable of reading the PCM code.

The other way is to guess.

What year and transmission?

[X JBM X]

It's a 99.5, so it's got the late '99 engine, and early '99 suspension - build date of 02/99

Don't remember the trans. code, I'm pretty sure it's not the e4od tho...R4100 maybe?

EDIT: I'll take a look under the truck today and figure out what Trans it is.

[X JBM X]

BUMP! I want to order but won't have time to get to a code reader as soon as I'd like.

[Canister]

I have a 99.5 w/ a build date of 3/99 and my PCM code is NVK3, if it helps?

[X JBM X]

I appreciate that...I'm not sure it helps any though...

I may just wait until I can have the code read. That way I have a 100% for sure answer.