dspskinsfan

Got a 92 4x4 truck with 22r and need to set my idle. The truck doesn't have a tach so I want to use one of the old school engine analyzers to read it. I know the battery connections but I need to hook the green wire to something. Last truck I did which wasn't a toy I hooked it to the negative post on the actual coil. Is this right? I did a little searching and read comments about burning the igniter up which I do not want to do of course. Also when adjusting the idle what should it be set at? And it is the screw on the top of the throttle body right? I thought that was for idle/fuel but could be wrong. Excuse all the questions but I have a crappy chiltons manual that has seen its better days! Thanks

abecedarian

I think you mean 22RE.

Anyhow, idle speed is set with the Idle Air Bypass Screw... yeah, the screw on top of the throttle body. You have to put the ECU into check mode by inserting the jumper as if you were pulling trouble codes or setting timing.

The old school analyser should be okay connected to the (-) terminal of the coil- same as if one was installing most aftermarket tachometers.

Now, to adjust the idle speed, you will likely have to check and adjust your timing too so have a timing light ready. Adjust idle then timing, then idle, then timing, as much as necessary sol the idle and timing are both where they should be.
Oh, and if you have an automatic, do so with the truck in drive, otherwise in neutral.
Once you're done, pull the jumper from the check connector and you should be good to go.

Idle and timing specs should be on a sticker under your hood. If not, around 800 should be fine (actually, 750 for a stick and 850 for an auto) and 5 BTDC for ignition timing.