loss acceleration and bogging when throttle position sensor is plugged in. runs well without tps. runs well when cooled down but as soon as it heats bam! loss acceleration bogging around 10mph.
replaced:
cap rotor wires spark plugs tps sensor fuel pump fuel filter

fuel pressure around 58psi when idle when accelerating 62-64psi


need help to find out witch direction to go in now got a 1997 astro with same issue so hopefully i can get some help on both. thanks in advanced.

 

Welcome to the forum.

You'll get more responses if you post in the Astro section.

 

thanks