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Chock th6 IAC vrlv.:
Disconnect the 2P connector trom
the IAC valve.
ooes lhe engine speed drop
orlhe engine stall?
Adiu3t th. lb.r.l idle Bp..d lroc
plgc 11-1111.
lf it's impo3.iblo, clo.n tho ports
in thc throftlc body.
Ch.ck th€ frtt idl. th.rmo vrlv.:
1, Turn the ignition switch OFF.
2. Remov€ th6 intake air duct
from the throttle body.
3. Slart the engine and let it idle.
4. Put your finger on the lower
port in the thronle bodv.
Chack angina coobnt Lv.l and fo.
ai. in th. cooling ry.l.m. It OK,
r.place tha fatt ldla lftarmo valva.
Does the engine speed drop?
Put your linger on the uppor port
in the throttle body.
Chacl tor vrcuum leek3, m.lc
ilJa th6 throttlo valvo ir com-
plotaly cloaad, rnd ropair aa nac-
a3aatY,
ooes ihe engin6 speed drop?
Adiutt th€ idl. .p..d l..r p.g.
11-1111. lf it'. impo3riblo, rcpl.c.
thc IAC v.lvc.
{A/T model)
- - - - t
LOWER
PORT
L . _ . _ . _ . _ . _ . _ . - l
IDLE
THERMO
VALVE
1 1 - 9 9
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Table of Contents
Troubleshooting
