Sr20det high idle

[lucas240sx]

I need help with high idling in my sr.
I've done a lot of researching.

Idle is sitting at 1500 when can is fully counter clockwise.
Idle is at over 2k with cas is in the middle.

I took valve cover off and set it at tdc. Inserted the cas on first dot and insert as it rotates to 2nd dot.

-tps was set at .47v.
-Iacv screw all the way down.
-New both coolant temp sensors.
-All clamps tight on my smic.
-Top 2 vac lines on tb is being used...right for regulator. Left for smic bov and boost gauge.
-With rpm at 1500, vac is around 19.....does this mean if rpm was to be at say 800-900....would the vac drop....which indicates I have a leak?

I let engine warm up, kill it, unplug tps, start car and rev, timing light hooked up to first plug, move cas so timing is at 2nd mark from right.
Rpm then was just as high as it is now

This is driving me crazy



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