fuel lexus LS400 1995 Electrical Components / 1995 LS400: STARTING AND DRIVING

STARTING AND DRIVING
126
THREE−WAY CATALYTIC
CONVERTER
Three−way catalytic converters are emission control
devices installed in the exhaust system.
The three−way catalytic converter located at the confluence of
exhaust pipes looks somewhat like a muffler, but its purpose
is to reduce pollutants in the exhaust gas.
CAUTION

Keep people and combustible materials away from
the exhaust pipe while the engine is running. The
exhaust gas is very hot.

Do not drive, idle or park your vehicle over anything
that might burn easily such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases flowing into the
three−way catalytic converter may cause it to overheat
and create a fire hazard. To prevent this and other
damage, observe the following precautions:

Use only unleaded gasoline.

Do not drive with an extremely low fuel level; running
out of fuel could cause the engine to misfire, creating
an excessive load on the three−way catalytic
converter.

Do not allow the engine to run at idle speed for more
than 20 minutes.

Avoid racing the engine.

Do not push−start or pull−start your vehicle.

Do not turn off the ignition while the vehicle is
moving.

Keep your engine in good running order.
Malfunctions in the engine electrical system,
electronic ignition system / distributor ignition
system or fuel system could cause an extremely high
three−way catalytic converter temperature.

If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a check−up as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its three−way catalytic
converter system best.

STARTING AND DRIVING
128
BEFORE STARTING THE ENGINE
1. Check the area around the vehicle before entering it.
2. Adjust seat position, seatback angle, head restraint height
and steering wheel angle.
3. Adjust inside and outside rear view mirrors.
4. Lock all doors.
5. Fasten seat belts.
Remember to check that the service reminder indicators
function when turning the key to “ON”, and check the fuel
gauge to see that you have sufficient fuel.
IGNITION SWITCH WITH STEERING
LOCK
“START” − Starter motor on. The key will return to the
“ON” position when released.
For starting tips, see page 130.
“ON” − Engine on and all accessories on.
This is the normal driving position.
NOTICE
Do not leave the key in the “ON” position if the engine
is not running. The battery will discharge and the
electronic ignition system / distributor ignition system
could be damaged.
“ACC” − Accessories such as the radio operate, but the
engine is off.

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130
HOW TO START THE ENGINE
Before cranking
1. Apply the parking brake firmly.
2. Turn off unnecessary lights and accessories.
3. Put the selector lever in “P”. If you need to restart the engine
while the vehicle is moving, put the selector lever in “N”. A
starter safety device will prevent the starter from operating if
the selector lever is in any drive position.
4. Depress the brake pedal and hold it to the floor until you are
ready to drive off.
Starting the engine
Before starting the engine, be sure to follow the instructions in
“Before cranking”.
Normal starting procedure
The multiport fuel injection system / sequential multiport fuel
injection system in your engine automatically controls the
proper air−fuel mixture for starting. You can start a cold or hot
engine as follows:
1. With your foot off the accelerator pedal, crank the engine by
turning the key to “START”. Release it when the engine starts.
2. After the engine runs for about 10 seconds, you are ready
to drive.If the weather is below freezing, let the engine warm up for a
few minutes before driving. Do not leave the vehicle while the
engine is warming up.
If the engine stalls ...
Simply restart it, using the correct procedure given in normal
starting.
If the engine will not start
See “If your vehicle will not start” on page 160.
NOTICE

Do not crank for more than 15 seconds at a time. This
may overheat the starter and wiring systems.

Do not race a cold engine.

If the engine becomes difficult to start or stalls
frequently, have the engine checked immediately.

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132
(a) Normal driving
 1
“P” (Park) position 2
“N” (Neutral) position
1. Start the engine as instructed in “How to start the
engine” on page 130.
The transmission must be in “P” or “N”. The engine will not start
in any drive position even if the ignition key is turned to
“START”.
 1
Driving pattern selector switch
2
Normal position 3
Power position
2. Set the driving pattern selector switch to the NOMAL
position.
Your transmission has a driving pattern selector switch which
allows you to select either “NORM” or “PWR” to suit your
driving condition. For ordinary driving, Lexus recommends that
you use the NORMAL position to improve fuel economy.
3. For more powerful acceleration and sporty driving, use
the POWER position.
In the POWER position, the “ECT PWR” light in the instrument
cluster is on and the transmission is shifted up at higher vehicle
speeds and shifted down more responsively than in the
NORMAL position.

STARTING AND DRIVING
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 1
“D” (Drive) position 2
Brake pedal
4. With your foot holding down the brake pedal, shift the
selector lever to “D”.
Always use the “D” position to improve fuel economy and quiet
driving. Only in this position, shifting into the overdrive gear is
possible. However, while the engine coolant temperature is
low, the transmission will not shift into the overdrive gear even
in the “D” position. (See “(b) Using engine braking” and “(e)
Good driving practice” for exceptions.)
CAUTION
Never put your foot on the accelerator pedal while
shifting.
5. Release the parking brake and brake pedal. Depress the
accelerator pedal slowly for smooth starting.
In normal cruising, the vehicle will start in the first gear and
automatically shift to the most suitable gear for the running
conditions.
In “3” position, the automatic transmission system will select
the most suitable gear for the running conditions such as hill
climbing, hard towing, etc.
If you need to accelerate rapidly while driving, depress the
accelerator pedal to the full throttle position. This provides
more acceleration by automatically downshifting the
transmission to the next lower gear or beyond, depending on
the vehicle speed.
If engine braking is needed, such as in descending a long hill,
see “(b) Using engine braking”.