Am I in the right range for TPS .63, IAC 45, MAP.67-.75? What are the bin settings and or ranges? I can't get the IAC count lower than 45 and are always 145 stopped in gear.

I got the surging to go away by unplugging the air pump and plugging its vacuum.
It still falls on its face 75% throttle to full throttle.

Thanks for letting me know about picking the color, I thought it was my screen, I didn't know the default was unreadable. That explains the view reply ratio. What are the bin settings?

88 K5/V10 Blazer 5.7 tbi 1227747 AMUR
Idle and Map sensor voltage both surging.


I can and did try adjusting TPS varying from .54 to .75, the best running was around .63 however it would dive,...