[Bullittwp]

I've read all the threads and I've done my research and see know this topic always comes up, but what am I supposed to do if I can't find the pcm I need. I've searched and looked..I've all Solopcm and even dodge and nobody has a pcm for a 02 rt Dakota.
I've even went as far as to strip a Durango but it is a 98 and things are different. I really don't know what to do right now. I need to get the truck going. All I have really need is to wire the 2 injectors in and get the pcm and a sct but I'm having no luck on a pcm. Does anyone have any suggestions or is there any way I can get the Durango parts to work

 

[RXT]

I'm not an electrical guru…I actually hate that the electronics have become part of an engine swap…but it is, what it is.

Ok, whats obvious to me, you will not have luck finding a PCM for a 02 R/T Dakota with a 5.2 because the 5.2 was never available on the 02. That means that you're going to need the PCM for whatever model year the engine happens to be…then of course the rest of the truck might not be compatible…at least those things the PCM controls (which really shouldn't be much)

Sorry I'm not much help. As I said, I'm not fond of dealing with the electrical side of an engine swap.

Ed

 

[RalphP]

What you CAN do is use a 5.9 ECU (it's close enough that it'll adjust and not run the 5.2 overly rich) to get yourself running.

Then, after it's running, contact a tuner such as Flyin' Ryan (frptuning.com) or Marty Fletcher (utawesomeperformance.com) and get them to do a tune for you, with something like a Syked or SCT or HPTuners handheld unit to write it to the ECU to correct for it being a 5.2.

Before you panic too much, write them or talk to them; there's a chance (outside, but a chance!) that the 3.9 ECU has all the hardware installed, it just needs a tune to wake up the other two injectors.

(Or it might not have the hardware installed - I dunno, but hey, I'd ask!)

THAT said - also check "the usual suspects"; car-parts.com shows 3 as I type this message (it shows 4, but one comes from a 4.7L truck, so I HIGHLY doubt it's a good pick.)

RwP

 

[daddyododge]

When the 4.7 came on the scene, it became the new small V8. The 4th plug in on the PCM
is for the RFE-45 electronic transmission. This PCM will not work at all.... If the 5.2 is
already installed, the 5.9 PCM, will be your best bet but will probably need to be tuned
for the 5.2 engine. If the engine is not installed, look for a 5.9.

Good Luck, Daddyododge