PRECAUTIONSGI-29
< PRECAUTION >
C
DE
F
G H
I
J
K L
M B
GI
N
O P
Before servicing the vehicle: Protect fenders, upholstery and carpeting with appropriate covers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trou ble codes, never carelessly disconnect the harness
connectors which are related to the engine cont rol system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and TM sections.
Three Way CatalystINFOID:0000000006280871
If a large amount of unburned fuel flows into the catalyst , the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
When checking for ignition spark or measuring engine compression, make tests quickly and only when nec- essary.
Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to the
catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Multiport Fuel Inje ction System or Engine Control SystemINFOID:0000000006280872
Before connecting or disconnecti ng any harness connector for the
multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
Before disconnecting pressurized fuel line from fuel pump to injec- tors, be sure to release fuel pressure.
Be careful not to jar components such as ECM and mass air flow sensor.
HosesINFOID:0000000006280873
HOSE REMOVAL AND INSTALLATION
To prevent damage to rubber hose, do not pry off rubber hose withtapered tool or screwdriver.
SGI234
SGI787
SMA019D
Revision: 2010 May2011 QX56
