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Yes that's it.

If fans are starting up quickly, have you done a code read. 93 uses paper clip to connect dlc terminals to flash codes.

Just because check engine light isn't on, doesn't mean you don't have codes. So before getting new chip, see if something is wrong that is kicking fans on.

For help, we have the 93 factory service manual in the 4th gen section. Look for thread titled "GM service manuals".
 

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Discussion Starter · #7 ·
Impossible for me to know what you know when you ask such a basic question with no details. For all I know, you had never seen an ECM.
shoebox I meant no disrespect I was hitting myself for not employing that I already new it would be inside the pcm i'm sorry if I offended you
 

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shoebox I meant no disrespect I was hitting myself for not employing that I already new it would be inside the pcm i'm sorry if I offended you
No problem. It's just hard to figure out where people are coming from with only a sentence or two to judge. Life on the internet. ;)
 
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