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14 Connect the M-MDS to the DLC-2. No LONG FT1 PID, LONG FT2 PID is out of specification. Less than specification (too rich): Inspect EVAP control system.
Greater than specification (too lean): Inspect for air leakage at intake-air system components. If system is normal, go to the next step. 15 Disconnect the vacuum hose between the Yes Check if purge solenoid valve is stuck No Go to the next step. 16 Remove and shake the PCV valve. Yes Go to the next step. No Replace the PCV valve. 17 Visually inspect the exhaust system part. Yes Replace the suspected part. No Go to the next step. 18 Visually inspect the CMP sensor and teeth Yes Go to the next step. No Replace the malfunctioning part. 19 Inspect variable valve timing control Yes Go to the next step. No Repair or replace the malfunctioning part. 20 Is engine compression correct? Yes Inspect the valve timing. No Inspect for causes. 21 Verify test results. If normal, return to diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZI-3.7].) If malfunction remains, inspect related Service Bulletins and/or On-line Repair If vehicle is repaired, troubleshooting completed.
2008 Mazda CX-9 Grand Touring 2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
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