Lingering Revs

[hayashi]

Engine: Blacktop 20v

Has anyone encountered 'lingering revs', where after you lift off the accelerator pedal, the engine's revs will hang there, or even increase a couple of 100?

I tried playing around with the dashpot/throttle opener clearance. If set to spec, the revs hang up high, if disconnected completely, the revs hang down low. Quite annoying when changing gears, cause the revs are way too high for the next gear. Makes for easy downshifts though, I guess?

[lolwat]

what car is it in, alot of new cars(manual) do this for emisions

[Matt]

Prob your accelerator cable isn't closing the throttles properly / fully in that it is adjusted too tight.

[hayashi]

It's in an ae86

How much slack should you put on the throttle cable?

[Matt]

I usually adjust it by having someone in the car, get them to hold it flat and ensure the throttles open fully, then when they let it go that they close fully.

Then you nip it up, making sure it doesn't get any tighter.

Too tight will see them stick open a little, and too loose will see the throttles not open fully.

[hayashi]

I'll try it, thanks!

[dove grey 64]

tps? i mucked around with mine the other day and now i have the lingering revs that your talking about. did you knock your sensor recently?

[hayashi]

No, havn't played with the tps. I'll recalibrate it to see if it's moved from spec.

[timbo]

Do it via the 4AGE manual. It is time consuming and very fiddly!

[hayashi]

Leaning towards it being the TPS. Throttle cable checked out fine, infact there was a little too much slack.

I'm looking at the manual now, and the resistances are extremely varied. 0.3 - 6.3 kohms, so what should you be aiming for? 3.3 kohm?