22RE - High Idle after coming off the higway

[digital]

94 Toyota - 22RE - 218K Miles

Just about every time I come off the highway, the idle stays aound 1800-2000.

If I turn off the engine and start it back up again, the idle drops to normal.

Any ideas?

 

[KLF]

Check to see if the throttle plate is sticking. Mine does that about every 6-8 months. A few shots of teflon-based lubrication on the pivots and linkages and it's fine.

Next time it does it, leave the idle high, pull over in a safe place, pop the hood and see if the throttle is stuck open, try to push it back down by hand. It could also be a sticky throttle cable.

 

[Downey]

If your engine has the same emissions equipment mine has, then your problem is 1,000 percent normal. That high idle burns-off the excess air/fuel mixture in the intake when/after you decelerate. If that did not happen, then your engine would be too loaded-up as you approach/sit at a red light, the engine could flood, then die. Additionally, your engine would not give that excess air/fuel a full burn, and it would be thrown out the tail pipe as emissions. This is also one of the problems guys have when they believe they do not need a VSS with thier fuel injection conversion. The VSS and Ignition Module control these idle functions.
If your problem is far in excess of this normal situation, then have a mechanic check into your idle functioning????

 

[digital]

I'll double-check the throttle linkage and good to hear everything may be ok after all.

Thanks for the posts guys.

 

[WristPin]

If your engine has the same emissions equipment mine has, then your problem is 1,000 percent normal. That high idle burns-off the excess air/fuel mixture in the intake when/after you decelerate. If that did not happen, then your engine would be too loaded-up as you approach/sit at a red light, the engine could flood, then die. Additionally, your engine would not give that excess air/fuel a full burn, and it would be thrown out the tail pipe as emissions. This is also one of the problems guys have when they believe they do not need a VSS with thier fuel injection conversion. The VSS and Ignition Module control these idle functions.
If your problem is far in excess of this normal situation, then have a mechanic check into your idle functioning????

my 89 has a mechanical speedo and no VSS.
never has his problems.
but i do always see a secondary code for the VSS when i check em.
not sayin your wrong about anything else, its a good place to look.

 

[pappy]

I would also check the dash-pot operation. Its job is to keep the idle a little high right after the throttle returns to idle. It should only last a second or so.