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setting idle speed 91 240 with 2.4 LH 200

posted by  someone claiming to be miracleman49 on  Thu Apr 25 13:00 CST 2002 [RELATED]

car had very rough idle, close to stalling a few times. Studied all the posts, archives and Haynes manual about idle problems etc.

Removed throttle body (was all gunked up) and cleaned it.

Turned the mechanical stop set screw 1/4 turn after it just touched the arm. Then set throttle position switch (tps) so that it "clicked" just as the mechanical stop came off the resting arm (as the throttle was just opening). Tested it with a multimeter to make sure. TPS contacts opened when the mech stop was .030 off the arm.

Reinstalled everything. Started engine. Idle was 1200 rpm. After several attempts to connect throttle linkage, I got it on so it did not influence on idle rpm; the mechanicl stop was resting on the arm. But idle was still 1200 rpm. Idle should be at 750 +/- 50.

I think the problem is with my setting of the TPS. After rereading the archives and posts, I am still confused about one step. They say to turn the TPS clockwise (away from the connector) until it stops. Then turn the tps counterclockwise (toward connector) until i hear the click. Then, and this is what I do not understand, they advise to "continue turning the tps until it stops, then tighten the screws."

My question is, what is the sense of listening for the click when turning the tps counterclockwise if we are going to turn the darn thing all the way counterclockwise anyhow??? I don't get it. Should I tighten the tps as soon as i hear the click??

any sage wisdom greatly appreciated






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