Fronzizzle

Being new to this, I was already confused - now I'm even more lost and I'm not sure what I need to do...

I'm converting my 1985 Camaro 305 TPI to a 383 with the HSR. Based on some recommendations, I decided to change over to the 1990-1992 style ECM. Well, I found the ECM on Ebay, only it said it didn't come with the Prom or Prom cover. I thought this was okay, but I was confused between the Prom and the Chip. So, I had PCM For Less make me a custom chip and I just received it...and realized that it is supposed to plug into the Prom, which then goes into the ECM. At least I think that's all correct...

If so, I now have a ECM and a custom-tuned chip with no Prom, and I have no idea how to get one. I searched Ebay and found a couple that say 1990 Camaro or Firebird, but they say V6 and I'm not sure I can use that even with the new chip. Others all come with chips and are like $250/$300. Can someone please point me in the right direction? Thanks.

Six_Shooter

iTrader: (2)

The 1227730 style ECM uses a MEMCAL, which contains a PROM, as well as the CALPAK, and Knock Filter (KF).

You really should use a MEMCAL from a V8, due to the CALPAK and KF. The V6 CALPAK can be modified to allow for proper 8 cylinder firing scheme, but the Limp Home Mode (LHM) won't be set-up correctly. The KF may also be an issue if you use one from a 6cyl.

The MEMCAL will plug into the side of the adapter, to retain the CALPAK, LHM and KF parts, while using the programming from the new PROM.

Fronzizzle

Wow...thanks for the info/response, but like 95% of that is over my head.

So if I get a MEMCAL, it needs to be off of a V8 car from 1990-1992, is that correct? Does it matter which V8, 305 or 350? And any suggestions on where to purchase one and what I should expect to pay?

Fronzizzle

Can somebody tell me if this one will work?

http://www.rockauto.com/catalog/x,ca...,parttype,2916

Dyno Don

iTrader: (7)

Unforunately this is what you need, but they can be had for less.

http://www.ebay.com/itm/90-92-350-TP...sories&vxp=mtr

Fronzizzle

Ugh. Okay. I assume the chip I got programmed already will work with this?

I see this one says "AUJP" but that :ANHT", and "AXXB" are available. Is the AUJP the one I want? And I assume that I want the VATS removed?

Tuned Performance

iTrader: (92)

There are instructions on using a external esc with the 730 ecm and converting a v6 3.1L memcal for the cylinder select fire rate at the attached link look at the last page pdf file. There are also v8 sd memcals in the classifieds here on tgo.

http://www.gearhead-efi.com/Fuel-Inj...0&goto=newpost

Tuned Performance

iTrader: (92)

a r knock filter would be what what you need aujp, anjf, anht, ect...

Fronzizzle

Thanks for the response. PM Sent.