1984 Chevy Blazer Where do I find a new computer?

Tiny
TSTOCKTON
  • MEMBER
  • 1984 CHEVROLET BLAZER
  • V8
  • 4WD
  • MANUAL
  • 148,000 MILES
I have a 1994 full size blaze that ran great. I just put 1400.00 in EGR, coil, and misc work. Now the dealer said they are getting a code 51 or 52 and that means that the computer is bad. They can't find one in San Diego. Do you know where I can get one?
Do you
have the same problem?
Yes
No
Friday, October 31st, 2008 AT 5:56 PM

5 Replies

Tiny
SWILLIAMS
  • MEMBER
The full sized Blazers used the same computer as a similar equipped full sized truck. The difference is in the PROM chip inside. In your case it almost sounds like it is the Cal-Pak (PROM) that is the problem. Shouldn't be hard to find a used computer and you could buy a chip for it from many online places.
Was this
answer
helpful?
Yes
No
Monday, November 3rd, 2008 AT 12:03 PM
Tiny
TSTOCKTON
  • MEMBER
Thanks for the tip. It is the PROM Chip I bought a computer but used the same chip and it did not fix the problem. I am now looking for the chip. Because the car is four wheel drive manual transmission the chip is hard to find. Thank you for the tip on the chip
Was this
answer
helpful?
Yes
No
Wednesday, November 12th, 2008 AT 10:04 AM
Tiny
SWILLIAMS
  • MEMBER
Parts For Less in Tuscon shows one that should work. It's from a 1/2 ton Chevy truck, with the 350 and a manual trans. 50 bucks. Phone is 1-800-571-7899
Call them and see what they say.
Being a 94 you should be able to buy an after market chip for it as well, and GM does still sell them but the price isn't nice.
Was this
answer
helpful?
Yes
No
Wednesday, November 12th, 2008 AT 9:49 PM
Tiny
TSTOCKTON
  • MEMBER
Thanks for the infor. I called them and they have the computer but not the chip. I found somepne that can make a new chip but I dod not have the broadcast code. Called Chevy, what a waste of time, and they have no idea. I had to explain to their customer service guy what the code was. Anyway do you have any ideas how to get the code? It is a 1994 full size blazer, $WD TBI with a 5.7 and manual 5 speed transmission. PS GM does not make them anymore.
Was this
answer
helpful?
Yes
No
Friday, November 14th, 2008 AT 2:17 PM
Tiny
SWILLIAMS
  • MEMBER
The last PROM I needed I bought from the parts counter at the local dealer. But it's been a while since they seldom fail. Can make you a new PROM
Jet Performance or Hypertech may also have something that would work.
Was this
answer
helpful?
Yes
No
Friday, November 14th, 2008 AT 11:43 PM

Please login or register to post a reply.

Recommended Guides