ive got an 89 k5,350 tbi.my gas petal has been hard to push for several years now. i remember when i first bought the truck 4 yrs agoit was fairly easy to push. then one day it became hard. like there was extra return springs hooked up. i tried to figure this out then but came up clueless. i've just gotten used to driving like this and just about forgot it was a problem, til yesterday. i ran into the previous owner and he asked if he could drive it around the block , he wanted to see how it felt after all the mods i've done to it. he noted how hard the gas pedal was, thought i added an extra spring or something. anyhow, here's what i've done trying to figure this out. disconnected throttle cable at TBI, pulls easy. disconnect TV cable at TBI, pedal is easy to push now. disconnect TV cable at both ends, pulls thru easy. i figured something happened inside my tranny and put more tension on the spring. but i've since replace that trans with a completly new unit from bowtie overdrive. didnt change a thing. one thing i did notice over the years was once the check engine light came on at a stoplight, when i took off from the light the pedal was alot easier to push. this was two blocks from home. when i got home and started it back up, CE light was off and pedal was hard again. i think the light was a code 32, and i've had that code come on many times, but only this once it changed the pedal feel. does this make any sense? im completly stumped. anyone else have a similar problem?