I pulled an ecm out of an 85 pontiac firebird trans am 350 the other day and had a question: did that particular ecm have a permanent prom? because when i look at it it looks like it was embedded or made permanent in the ecm

oh yeah, its for sale.

 

I'm not familiar enough to say what was in those cars without doing some research, but if there's a label on it with a number beginning with 122 (+4 digits) or maybe 161 (+5 digits) then it's easier for me to say what it is and where the prom is. The prom should have a label or some printing on it with 3-4 letters and maybe 4 digits. Isn't there an extra lid on the case? The prom should be directly under that, but could of course be soldered directly on the pcb.
If it's a 1228079 then I'm interested btw.

 

Ok, here's what I got..the prom is HLL7741. I can not read the whole number on the sticker, but it is 7-6??? Looks like 8132 above the HLL on the prom. Pics on ebay, user mitalegatr. there is other info there as well..If you need it and we can deal, I will pull it. Let me know, thanks.