Auxiliary Port Valve (APV) Control Inspection
WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the WDS or equivalent to the DLC-2.
- Verify DTC P2004, P2006, P2008 or P2017 is not displayed.
- If DTC P2004, P2006, P2008 or P2017 are displayed, perform DTC inspection. (See DTC TABLES .)
- Access the ECT and RPM PIDs.
- Start the engine and warm-up it above the ECT PID 70 °C {158 °F}.
- Verify that PCM terminal 3B voltage is 1.5 V or more during idle and decreases to less than 1.5 V when the engine speed is increased.
- If not as specified, proceed to next step.
- Inspect and repair or replace the following wiring harnesses and connectors for an open or short circuit.
- APV motor terminal A-PCM terminal 3B
- APV motor terminal B-PCM terminal 3J
- APV motor terminal D-PCM terminal 3G
- Remove APV motor and APV.
- Inspect for the following:
- APV motor (See AUXILIARY PORT VALVE (APV) MOTOR INSPECTION (13B-MSP (HIGH POWER)) .)
- APV (stuck open or closed)