Toyota ZZT230 series Repair Manual page 310

10
Check for o
sensor and CM (See page IN-30).
Replace vapor pressure sensor.
Check VSV for EVAP.
)
y
y
-
=:
VSV Is O N
)
DIAGNOSTICS
�
n and short In harness and connector between vapor pressure
PREPARATI O N:
(a) Remove the ECM cover.
( b )
CHECK:
Check VSV
OK:
AOSOOJ
VSV Is OFF
ENGINE
swi t ch ON.
Turn the ignition
function.
Connect between terminal EVP1 of the ECM con­
( 1 )
nector and body ground (VSV ON).
Disconnect between terminal EVPi
(2 )
connector and body ground (VSV OFF).
( 1 )
I s ON:
Ai r from port E fows out through port F.
VSV
(2) I s OFF:
Ai r not f l o w fr o m p o r t E to port F.
VSV
does
Dl - 99
the ECM
of