Quote Originally Posted by EagleMark View Post
So it's a complete TBI System on a Jeep engine or the complete GM engine transplant? What size engine.

Unplugging MAP and it runs better is not good? With MAP unplugged, MAP kpa goes max and adds fuel. So check fuel pressure.

MAP hose should be plugged into hose barb between fuel lines on back of TBI. (Just checking it's in right spot)
I installed a complete 5.7L GM Motor and fuel/spark management system ecm (1228747 not 1227747) from a 89 GMAC G3500 Box Van.

The MAP Sensor tube is plugged into the middle vacuum line in the rear of the throttle body. I will have to check the fuel pressure, currently don't have provisions for that right now, but will this weekend.

I did eliminate all the EGR Controls from this setup. I did leave the EGR Valve bolted up until I can obtain a block off valve. Also I didn't plug in the knock sensor but did leave ESC hooked up to the system. Will any of this effect anything.