Handling and disposal of sodium-filled exhaust valves requires special care and consideration. Under conditions such as breakage with subsequent contact with water, metal sodium which lines the inner portion of exhaust valve will react violently, forming sodium hydroxide and hydrogen which may result in an explosion. Sodium-filled exhaust valve is identified on the top of its stem as shown in illustration.
(A) : Identification mark of sodium-filled exhaust valve
DEALER DISPOSAL INSTRUCTIONS
CAUTION:
(A) : Black color
(B) : Silver color
(c) : 47 mm (1.85 in)
(d) : 17 mm (0.67 in)
(a) : 40 mm (1.57 in)
Strike the valve face end with a hammer, separating it into two pieces.
Carefully place the already cut (serrated) valves into the water one-at-a-time using a set of large tweezers and quickly move away at least 2.7 m (9 ft).
However, no more than 8 valves should be placed in the same
10 (2-5/8 US gal, 2-1/4 lmp
gal) amount of water. The complete
chemical reaction may take as long as 4 to 5 hours.
Remove the valves using a set of large tweezers after the chemical reaction has stopped. Afterwards, valves can be disposed as ordinary scrap.
A : Bucket [Such as 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can]
P0138 HO2S2
DTC Description
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time between rich and
lean than the air fuel ratio (A/
F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold)
causes the longer switching
time.
MALFUNCTION A
To judge the malfu ...
P0031, P0032 A/F sensor 1 heater
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0031
A/F SEN1 HTR (B1)
[Air fuel ratio (A/F) sensor 1 heater (bank
1)control circuit low]
The current amperage in the A/F sensor 1 heater circu ...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
...