Pickup 2WD L4-2254cc 2.3L SOHC (4ZD1) MFI (1994)
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Thermal Vacuum Valve - EVAP: Description and Operation
The vacuum switching valve is connected in series on the purge signal line to cut off the vapor purge under the condition of low vehicle speed and
low engine speed.
The vacuum switching valve is actuated by an electric signal supplied from the ECM, and this cut-off maintains adequate driveability.
