High RPM performance prob

[HondaFan81]

Not here to post my top speed but post an issue. My stock 90 EX recently had the timing belt & accessory belts & water pump changed. Ever since that car feels like it just slowly dies out when I rev it up just before redline in each gear. Maybe I feel this is awkward cuz I haven't driven the car in a bit (was garaged for 6 months). But in 4th gear I was as gets over 100mph it barely moves along RPMwise....I just feel like the car is capable or should be revving up more, but it like just bogs out @ the higher RPM. I adjusted the throttle cable which was a little lose & sprayed intake manifold cleaner. I'm thinking it's cuz 3 of 4 spark plugs are wet, needs new O-rings under valve cover. That's an unresolved issue that's been going on for a while now...maybe it's just reached the point where it's really affecting peformance. I'll replace O-rings, new NGK copper spark plugs, check dist cap & rotor & reset ECU after all that.

hopefully that helps....anyone else have a clue?

[xplode]

it seems liek it could be those things that you mentioned.. but i wonder that if the egr would have something to do with that, its not throwing codes rite?.. im guessing blocked ports could also hinder the acceleration.

[HondaFan81]

no codes

[xplode]

hmm.. weird.. it could be the EGR either that or your having some throttle problems.. im not really sure since its not throwing any codes.. but its possible

[slobluaccord]

they didn't put the timing belt on a few notches off did they?

[HondaFan81]

Originally posted by slobluaccord
they didn't put the timing belt on a few notches off did they?

Not sure, I assume they did the job right since it was the Honda dealer we always go to. We've never gone back for anything, they always have done a good job.

Before I point the finger I'm doing the valve cover O-ring changes & spark plug replacements, then resetting the ECU. If that don't improve it...then I'll look into that. I just got a timing light, so first time I can use it

[BustedLX]

Sounds like the timing is off to me. Not a good thing though that it has taken you so long to bring it to there attention since the work has been done. I would take it to where ever you got the work done as soon as possible and explain you're situation.

[slobluaccord]

well since you have a timing light you can see if it's off a few teeth yourself.

I think........

If it's off a few teeth the marks should kinda "move" under the timing light. Am i right guys? I could be COMPLETLY off on this, but i'm pretty sure that is one way to tell.

[HondaFan81]

sorry to respond so late, but yea BustedLX...you have a good point...let you all know when I get to it.