Im in need of a new pcm. The only thing is, i have a 98 blazer with a 96/97 engine. So i was just wondering if i would need to buy one same year as the blazer or the same year as the engine. or does it matter,because i plan to have it re-programmed to my vin.

 

I believe the 98 year had different plugs... Im not sure tho..

 

I have a 96 parts blazer and it has the same plugs.