System Check
WARNING: This page is about a different car, the 2001 Mazda Protege, 2001 Mazda Millenia, 2001 Mazda MX-5 Miata, 2001 Mazda MPV, and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
- Start engine. Check Variable Resonance Induction System (VRIS) shutter valve actuator rod positions. For 626, see VACUUM DIAGRAMS article. For Millenia, see Figure . On all models, VRIS shutter rods should not be pulled. If VRIS shutter valve actuator rods are not pulled, go to step 4 . If VRIS shutter valve actuator rods are pulled, go to next step.
- Turn ignition off. Connect New Generation Star (49 T088 0A0) scan tool to Data Link Connector (DLC) 2. DLC-2 is located under left side of instrument panel, right of steering column. Check for Diagnostic Trouble Codes (DTCs). See appropriate SELF-DIAGNOSTICS - INTRODUCTION article. If any DTCs are present, repair as necessary. If DTCs are not present, go to next step.
- Start engine and run at idle. Using scan tool, select SIMULATION TEST. Turn both VRIS solenoid valves on using VRISV1 or VRISV2 selection. Listen for clicking noise from VRIS solenoids. If both VRIS solenoids click, check VRIS shutter valve actuators. If VRIS solenoids do not click, check VRIS solenoid valves.
- Start engine and operate at idle. Check operation of shutter valve actuators No. 1 and 2 at specified engine speed. See VRIS RPM SPECIFICATIONS (MILLENIA 2.5L & 626 2.5L) table. If actuators do not operate as specified, check for DTCs. See appropriate SELF-DIAGNOSTICS - INTRODUCTION article. Repair as necessary. If no DTCs are present, check VRIS components and Throttle Position (TP) sensor.
VRIS RPM SPECIFICATIONS (MILLENIA 2.5L & 626 2.5L)
| RPM | Position | ||
|---|---|---|---|
| Millenia 2.5L | |||
| Shutter Valve No. 1 | |||
| Less Than 3750 | Closed | ||
| 3750-6250 | Open | ||
| More Than 6250 | Closed | ||
| Shutter Valve No. 2 | |||
| Less Than 4250 | Closed | ||
| 4250-6250 | Open | ||
| More Than 6250 | Closed | ||
| 626 2.5L | |||
| Shutter Valve No. 1 | |||
| Less Than 3750 | Closed | ||
| 3750-6250 | Open | ||
| 6250-7500 | Closed | ||
| Shutter Valve No. 2 | |||
| Less Than 4250 | Closed | ||
| 4250-6250 | Open | ||
| 6250-7500 | Closed | ||