Do Prom Chips go Bad?

elcotrk

Not-quite-so-new-guy
Oct 8, 2021
49
8
Over the years I’ve just about replaced everything on my Elco
Wondering if this could be a hidden problem?
What would be the symptoms would it show on Check Engine Light?
Would car still run?
Anyone replace one? Why?
Thx
 

tkruger

Master Mechanic
May 6, 2015
347
63
NY
I have worked a long time in the IT industry. Yes, generally speaking any type of microchip can go bad. Typically heat, water, static or electrical voltages that are out of spec are the cause. Also check if it it the socket that may be bad. It is possible for a chip only to act up when it is heat soaked, I.E. when it gets warm enough to intermittently have an open circuit within it.

Also check the wiring to it. My truck had an random intermittent issue that would cause it to die. Turned out that a wire in the harness going to the ECU had a bit of insulation rubbed off and it was shorting every so often.
 

57 Handyman

Greasemonkey
Feb 6, 2017
247
63
I've noticed you seem to post the same questions on this site as well as ElCaminoCentral.

 

elcotrk

Not-quite-so-new-guy
Thread starter
Oct 8, 2021
49
8
I've noticed you seem to post the same questions on this site as well as ElCaminoCentral.

Want more to see it. G body may have more members.
 

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