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• Inspect all vacuum hoses for:
–Correct routing. Refer
to vehicle service
manual, or Vehicle
Emission Control
Information(VECI)
decal located in the
engine compartment.
–Pinches and kinks.
–Splits, cuts or breaks.
• Inspect wiring for:
–Contact with sharp
edges. (This
happens often.)
–Contact with hot
surfaces, such as
exhaust manifolds.
–Pinched, burned or chafed insula-
tion.
–Proper routing and
connections.
• Check electrical
connectors for:
–Corrosion on pins.
–Bent or damaged
pins.
–Contacts not properly seated in
housing.
–Bad wire crimps to terminals.
Problems with connectors are common
in the engine control system. Inspect
carefully. Note that some connectors use
a special grease on the contacts to
prevent corrosion. Do not wipe off!
Obtain extra grease, if needed, from
your vehicle dealer. It is a special type
for this purpose.
8
YST
HVAC
CRUISE
CE BOOSTER
EGR
G GAP
VAC
BRAKE BOOSTER
REG
FUEL
PRESS
U.S.A.
REG.
EGR
VAC
REG
EM
TO TRANS
MODE
FRONT
OF CAR
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