1994 Buick Park Avenue P.C.M.

Tiny
PLEASEHELPSIRS
  • MEMBER
  • 1994 BUICK PARK AVENUE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 280,000 MILES
Prom failure I replaced the P.C.M. And prom started right up. Ran for 5 minutes, then died no restart replaced prom started right up ran 5 minutes, then died. Will you please tell me what could be causing this, and why the proper rated fuses remain intact. Thank you for your time
Thursday, September 23rd, 2010 AT 4:40 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
When replacing proms in pcm's you should ALWAYS use a static strap on you wrist that goes to ground on the car. This could be a problem with the connections going to the computer itself. Check for bent pins on the computer as well as stuff stuck in the electrical connectors. Also check around the computer to see if there is a ground wire that is loose or dirty.
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Thursday, September 23rd, 2010 AT 8:06 PM

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