Jims86
Full Access Member
- Joined
- Aug 3, 2010
- Posts
- 5,492
- Reaction score
- 135
- Location
- Patterson,Ca
- First Name
- Jim
- Truck Year
- 1986
- Truck Model
- K10 Suburban Silverado
- Engine Size
- 5.7 TBI
So GM runs on the Four-pulse sine wave ??? I was thinking they were the two pulse, good thing I did`nt jump and order one a while back.
87-92 TBI runs 2
TPI runs the 4 pole AC sine wave unit.
93-95 TBI, LT1 and I think Vortec run that 40 pulse one.
It has to do with otions like the radio that changed volume depending on speed, and speed activated door locks, and blahhh blahhh.