PCM For A 98 Blazer?
 

Will the Venom 400 work on a 1998 Blazer? As far as I can find it does but also how does it work. Looking at pictures of the unit all it has is an on and off switch, how do I actually control what kind of output or fuel savings I want with it?

Your best bet is to have your pcm tuned. I have a blackbear performance tuned pcm and it was a night and day difference. There is also pcmforless, wait4me, wheatley, nelson, I choose blackbear.

Thanks, I'll check those out right now.The blackbear one does look pretty nice. Around how much did that run you?

It was 260 since I kept my old pcm, 200 if you send him yours. Check out his site, all the full size chevy guys swear by him. You can also do a data log tune but that's more money lol.