Mazda RX-8 Workshop Manual page 708

29 Check the engine oil condition.
Is the engine oil low viscosity
and/or is there a gasoline odor?
30 Check the oil pipe between
metering oil pump and metering
oil nozzle.
Is there air and/or clogging in oil
pipe?
31 Retrieve any continuous memory
DTCs.
(See ON-BOARD DIAGNOSTIC
TEST [13B-MSP].)
Are there any continuous memory
DTCs displayed?
32 Verify test results.
If normal, return to the diagnostic index to service any additional symptoms.
Yes Replace the engine oil.
After that overhaul or replace the engine.
No Go to the next step.
Yes Inspect and repair for leakage and/or clogging in the oil
passage at the engine.
After that overhaul or replace the engine.
No Overhaul or replace the engine.
Yes DTC is displayed:
Go to the appropriate DTC inspection.
(See
Communication error message is displayed:
Inspect the following:
No Go to the next step.
DTC TABLE [13B-MSP].)
Open circuit in wiring
harness between main
relay and PCM terminal
1AW or 1BE
Open circuit in wiring
harness between main
relay terminal E and PCM
terminal 1Q
Main relay is stuck open
Open or short circuit in
wiring harness between
the DLC-2 and PCM
terminals 1AM or 1AI
Open or poor GND circuit
(PCM terminal 1A, 1BB,
1AZ, 1BH or 1BD)
Poor connection of
vehicle body GND