Throttle Body problem?

[1993CivicVX]

does your car maintain constant speed at high speed? Or do you feel it slow down, gain power, slow down, gain power at 70mph? I still haven't gotten any VX owners that say "no, this doesn't happen" or "yes, this is normal, my car does it too"

[Sigifrith]

Originally Posted by 1993CivicVX

does your car maintain constant speed at high speed? Or do you feel it slow down, gain power, slow down, gain power at 70mph? I still haven't gotten any VX owners that say "no, this doesn't happen" or "yes, this is normal, my car does it too"

70MPH!!!!!!!!! I'm trying for 70MPG. I doubt that my VX sees 60 more that 1 mile/Month. My car has an aftermarket cruise control thats set for 49MPH on my way to & from work. I do EOC for 10 to 15% of my 30 mile trip to work & back. The few times I'm on a highway, I'm probably running 55 tops. I don't experience the up & down power you describe. I'm slowly raising tire pressures too. I also run the A/C as much as needed.