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.
Purge Control Test
2008 Mazda Tribute s Sport, 4WDSECTION Purge Control Test
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. Disconnect vacuum hose from catch tank to purge solenoid valve at valve. Check that there is no vacuum at purge solenoid valve fitting when engine is cold. If no vacuum is present, go to next step. If vacuum is present, check purge solenoid valve and wiring between purge solenoid valve and PCM terminal No. 18. Repair as necessary.
- Warm engine to operating temperature. Turn ignition off. Connect scan tool to DLC-2. DLC-2 is located under left side of instrument panel, left of steering column. See Figure . Turn ignition on. Select PID/DATA MONITOR AND RECORD. Select ECT PID. Ensure ECT is more than 140°F (60°C). If ECT is as specified, go to next step. If ECT PID is 140°F (60°C) or less, check ECT sensor. Repair as necessary.
- Select SIMULATION TEST. Select PRG V PID. Press start. Using scan tool, increase purge solenoid valve duty cycle to 50 percent. If valve operation is heard, check vacuum hoses between intake manifold, purge solenoid valve, catch tank and charcoal canister. If valve operation is not heard, check purge solenoid valve. Repair as necessary.
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.