TSRM/MK3 Supra/Repair Manual
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EC/Emission Control Systems, page 10

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Emission Control Systems — MK3 Supra Emission Control Systems, page 10
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Page text (OCR transcript)
EC-10

EMISSION CONTROL SYSTEMS — Dash Pot (DP) System

7M-GE
DP Adjusting
Screw

If not at the specified speed, adjust with the DP adjusting
screw.

EK2855

7M-GTE

DP Adjusting
Screw

EC2952

7M-GE
Release

Approx.
1 Second

rpm

EC3221

7M-GTE

Approx.
1 Second

Release

rpm

EC2953

4. CHECK OPERATION OF VTV

(a) Set the DP speed in the same procedure as above; (a)
to (c).

(b) Release the pinched hose and check that the engine
returns to idle speed in approx. 1 second.

IF NO PROBLEM IS FOUND WITH THIS INSPECTION, THE
SYSTEM IS OKAY; OTHERWISE INSPECT EACH PART