Blue-88
Newbie
Looking for some guidance. I have a 1988 c1500 305 auto. I finished some upgrades to the TBI (new injectors and a spacer). I took it for a test drive and can notice some gains, but when I floor it the trans doesn’t downshift into a passing gear. I figured I needed to adjust the TV cable and popped the hood and I don’t see a TV cable. I have two cables coming off of the TBI, the throttle cable and another cable below it that goes to a plastic box on the firewall. Inside that box is a circuit board and a spring tensioned spool. I’m guessing this is the TV cable for that model year, but I do not see anyway to adjust it. When I pull the throttle open, slack on that ribbon doesn’t get taken up by the spool. Anyone else confused?