Note
1. Connect the WDS or equivalent and monitor PIDs as following.
2. Begin to monitor the appropriate PIDs.
3. Drive the vehicle for 10 min at 65-96 km/h {40-60 mph}
to allow the front catalytic converter to reach operating temperature.
4. Stop the vehicle and leave it in a safe place.
5. Let the engine idle.
6. Record PIDs for 1 min.
7. Select the appropriate PIDs and read the graph.
8. Count the number of times (inversions) that the upstream HO2S graph line actually crosses the 0.5 V
line.
9. Count the number of times (inversions) that the downstream HO2S graph line actually crosses the 0.5 V
line.
Note
10. Using the following equation, calculate the value of ratio.
Equation
RATIO = Upstream HO2S inversion ÷ downstream HO2S inversion
or more or there is no downstream HO2S inversion, the TWC is functioning properly.
the TWC is not functioning properly. Replace the TWC.
Upstream HO2S graph line example
Downstream HO2S graph line example 1
Equation
RATIO = 30 inversions (upstream HO2S inversions) ÷ 5 inversions (downstream HO2S
inversions) = 6.0 (good WU-TWC)
Downstream HO2S graph line example 2
Downstream HO2S graph line example 3
Equation
RATIO = 30 inversions (upstream HO2S inversions) ÷ 27 inversions (downstream
HO2S inversions) = 1.1 (bad converter)
Mazda 6 Service Manual: Oil seal (differential) replacement
1. On level ground, jack up the vehicle and support it evenly on safety
stands.
2. Drain the oil from the transaxle.
3. Remove the front wheels and splash shields.
4. Separate the drive shaft and joint shaft from the transaxle. (See DRIVE
SHAFT REMOVAL/INSTALLATION.) (See JOINT SHAFT REMOVAL/ ...
Mazda 6 Service Manual: Clutch fluid replacement
Caution
Be careful not to spill clutch fluid on a painted surface. If this
should happen, wash it off immediately.
Note
Do not mix different brands of clutch fluid.
Do not reuse the clutch fluid that was drained out.
1. Remove the under cover.
2. Draw the fluid from the reservoir ...