Note:
Many Fieros have problems w/ gas pedal, the throttle cable, and/or TB/TBI...
Worn pedal parts, cable stretch, worn shaft in TB/TBI or all at once will hurt performance and
some will hurt the "swap" too. See my Cave,
Throttle CableSearch PFF for pedal problems. The big plastic "bearing" on the pedal rod wears and gets a lot of play. Worse if fools use oil/grease on it.
Many needs ECM scanner at some point...
Just read throttle % w/ pedal floored and many will see 70-85% max.
Or just have help to hold pedal down and look in the TB/TBI...
Then turn TB/TBI arm/"wheel" until you reach WOT and often see a big difference. The cable should pull the shaft very close or at the throttle max limit.
When you can't reach WOT... that can affect the auto trans too because of TV cable and ECM.
ECM may not release TCC and/or TV Cable may not "kick down" when needed to pass on a highway etc.
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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave