ttw18

nine9six

More info...yr, make, model?
Does the car seem to perform well?
I would imagine 70% throttle could be felt in a lack of performance.

Do you have a buddy that has an OBD2 reader to compare values, in order to validate your initial readings?

Churchill

Very likely that throttle linkage needs adjustment and is not allowing WOT. Prop the gas pedal all the way down and physically check how far the throttle is opened. Threads in the archives on how to do this. Not easy with the Vram manifold in the way but not impossible either.

ttw18

Ok I tightened throttle cable and the turnbuckle adjustment at the throttle pedal. Still the max throttle position I get is 76%. It seems like the throttle pedal needs a longer stroke, but I backed out the adjustment as far as I can go. The rod at the pedal must only have 2 threads into the turnbuckle. I read that someone filed down their throttle stop but it seems like I should be addressing the underlying problem.

Churchill

There's a plastic adjuster in the center tunnel. Access is at the rear end of the metal tunnel cover under the car. That's where you want to adjust it. It's been years since I was in there but I think the adjuster nut takes a 15mm or 17mm wrench. You shouldn't need to remove the tunnel cover, just the plastic trans cover.

ttw18

Yep, I got that one too. Made adjustments at the cable in the tunnel and at the pedal.

pp000830

Does anyone know if Durametric will display throttle position in its running data options?

JasonAndreas

How much additional opening is there available at the throttle butterfly when the reading is at it's maximum?

ttw18

Thanks. Is the post above saying that 75% is the max throttle reading?