Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA2008RX-8 TOURING, 1.3 N, RC4AELREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMSYMPTOM TROUBLESHOOTING [ENGINE)ENGINE CONTROL SYSTEM OPERATION INSPECTIONMETERING OIL PUMP CONTROL INSPECTION
2008 Mazda RX-8 Touring, 1.3 N, RC4AEL
Metering Oil Pump Control Inspection
2008 Mazda RX-8 Touring, 1.3 N, RC4AELSECTION Metering Oil Pump Control Inspection
- Connect the M-MDS or equivalent to the DLC-2.
- Verify that DTC P1686, P1687 or P1688 is not displayed.
- If DTC P1686, P1687, P1688 are displayed, perform DTC inspection. (See DTC TABLE )
- Verify that the metering oil pump motor coil resistance is as specified.
- Verify that there is continuity between the metering oil position switch terminal A and C.
- Measure the voltage of PCM terminal 2N at idle.
Specification 0 V
- If not as specified, inspect for the following wiring harnesses and connectors:
- Between PCM terminal 2N and metering oil pump position switch terminal A
- Between PCM terminal 1U and metering oil pump position switch terminal C
- If not as specified, inspect for the following wiring harnesses and connectors:
- Inspect for the following and repair or replace according to inspection results.
- Oil pipe (leakage or crack between metering oil pump and oil nozzle)
- Oil nozzle
- Air bleed hose (leakage, clogged, damage or poor connection)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.