correct procedure for setting base idle?

[deadboy1977]

I saw this procedure somewhere, but the RAVE I have says something different. WHat's the correct procedure for setting the base idle on a 95 RRC with a 4.2?? Also how do you guys measure 0.002 gap for the throttle plate?? piece of small wire?

If basic repairs or adjustments don't solve the problem, base idle speed should be adjusted. Read and understand all the instructions that follow before you start. Adjustment is made by turning a set screw that's normally hidden under a tamper-resistant plug on the MAF sensor. (The plug in at the end of the cylindrical projection you see in the upper right-hand corner of the first photo above.) To access the screw, first drill a small hole (typically 1/8") in the tamper-resistant plug. Thread a sheetmetal screw into the hole, and then pry the screw & plug out together.

Adjusting Idle Speed : The following steps must be taken in the proper order, even if they seem dumb.
1. Verify once again that the throttle, timing, and TPS adjustments are to spec.
2. Start the engine and operate the vehicle until it reaches normal operating temperature.
3. Attach an accurate tachometer.
4. Switch the ignition on. (Don't start the vehicle!)
5. Disconnect the electrical connector on the Bypass Air Valve.
6. Switch the ignition off.
7. Listen for a "click" sound from the main EFI relay. (On Range Rover, it's under the right front seat.)
8. Reconnect the electrical connector on the Bypass Air Valve.
9. Switch the ignition on. (Don't start the vehicle!)
10. Disconnect the electrical connector on the Bypass Air Valve.
11. Start the vehicle out-of-gear (or in "neutral") without touching the accelerator.
12. Adjust the "base idle speed" screw on the MAF with a 3/16" Allen wrench to 550-650 RPM.
Turning counter clockwise will raise the speed and vice versa.
13. Reconnect the electrical connector on the Bypass Air Valve.
14. Switch the ignition off.
15. WAIT for main relay "click" sound.
16. Switch the ignition on, start the engine and rev briefly to 2000 RPM.
17. Note the idle speed. It should stabilize at 665-735 RPM.
18. Install a new "tamper proof" plug.