Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Tuning a 1993 PCM

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Old Jan 12, 2004 | 09:41 AM
  #1  
93ZM6Tally's Avatar
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From: Tallahassee, FL
Tuning a 1993 PCM

What equipment do I need and where do I get it to burn new chips for 1993. I'm also slightly confused because according to the research that I've done so far it looks like it's possible to change the chip in the 1993 so that "in car" editing is possible. Is this correct. Any help greatly appreciated.
Old Jan 12, 2004 | 12:40 PM
  #2  
jay g's Avatar
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go to tunercat.com they have links for everything you will need'

basically you need a pc, a prom uv eraser, and a prom burner, it will run you about $200-300 for the eraser and burner
Old Jan 13, 2004 | 08:37 AM
  #3  
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Here's what I have and use:

Datamaster for data logging.

Tunercat for the tuning software.

PocketProgrammer2 for the chip burning.


You don't need a UV eraser. That's only if you use the 27C256 chips. They have a UV chip in them that needs to be erased every time you need to reprogram it. Myself, PCMforless (NOT Byran, but his chips associate), and countless others use Amtel 29C256 flash chips. Completely reprogrammable, over and over. No eraser, nothing needed.

Contrary to popular belief, there is no romlulator (eeprom emulator) that works with the 93's, letting you do in-car tuning. You MUST remove and replace the chip. No biggie, just a couple of small sockets and you're done.

Here is a link on the Speed Density LT1 Tech Forum discussing this in greater detail. The PCMforless chip guy is a regular over there too, and he's very helpful. check out the rest of the board while you're at it, let us know what you think.

Last edited by Fastbird93; Jan 13, 2004 at 08:39 AM.
Old Jan 14, 2004 | 09:27 AM
  #4  
93ZM6Tally's Avatar
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Thanks guys. I've been on the Speed Density board a few times. I've been using PCMForless and have been more than satisifed with their work, but want to get to the point where I can burn my own chips.
Old Jan 22, 2005 | 07:37 PM
  #5  
dmoss69's Avatar
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From: North, SC, USA
Re: Tuning a 1993 PCM

These Amtel 29C256 flash chips, can I use these in my 93 chevy truck, or is that only in 93 lt-1 cars. I have a couple of GM cars that I plan on tuning, and if this is a one-chip-fit-all deal, I'll go this route.

Thank You

D Moss
Old Mar 6, 2005 | 05:30 AM
  #6  
Colin's Avatar
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From: Victorville, CA
Re: Tuning a 1993 PCM

I bought a BURN1 setup from Craig Moates (Moates.net). Great setup. I can't wait to play with it in a few weeks when I'm on spring break and get my LT1 into my '72 Vega.
Old Mar 9, 2005 | 05:58 PM
  #7  
LT1Squirrel's Avatar
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From: NJ
Re: Tuning a 1993 PCM

i ordered my chip from craig moates, hes one of the more prominent tuners on TGO...youre also going to need the 4 letter code of the chip itself, i think i still have the 'infamous' BDLD on my comp somewhere if you need it
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