Was driving down the Highway & all of a sudden I had no throttle. I shut the 87 4runner down & then noticed my dash pot adjustment screw was missing but that didn't seem to be an issue. Towed it & then took a look at it when I got home.

I started it up & this time drove it around the block. The engine was running up the RPMs at weird times so I took it back home and parked it. The CPU was throwing a 11 code & it ruled out my thoughts of a bad throttle cable. Was now thinking TPS.

This afternoon I popped the hood & took of the air intake hose. Well, I found a sleeved round rubber piece stuck in the flapper on the air intake & it was causing the throttle linkage to bind up. I replaced that hose several months ago & some how must have left this rubber piece in the intake hose & it finally moved.


So I thought great, finally an easy stupid fix...WRONG!

The engine is now idling up & down or rough. I took off the vaccum hose that goes from the Air Valve to the bottom of the idle adjustment screw and it is idling better but when I put the hose back on it idles up & down.


FYI: I did have to shut the engine down several times at HIGH rpms because of that stupid rubber piece.

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Thanks!