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 MANUALSMAZDA2008CX-7 TOURING, 2.3 3, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM) - (1 OF 5)DIAGNOSTIC MONITORING TEST RESULTS[L3 WITH TC]
2008 Mazda CX-7 Touring, 2.3 3, AWD
Diagnostic Monitoring Test Results[L3 With TC]
2008 Mazda CX-7 Touring, 2.3 3, AWDSECTION Diagnostic Monitoring Test Results[L3 With TC]
- The purpose of this test mode is to confirm the result of the OBD-II monitor diagnostic test results. The result values stored when a particular monitor is completed are displayed. If the monitor is not completed, the initial value is displayed.DIAGNOSTIC MONITORING TEST RESULTS[L3 WITH TC]
TEST ID Description Related system 10:01:80 HO2S (Front) lean-to-rich response time (calculated) HO2S 10: 02: 03 Low HO2S (Rear) voltage for switch time calculation (constant) 10:02:04 High HO2S (Rear) voltage for switch time calculation (constant) 10:02:05 HO2S (Rear) rich-to-lean response time (calculated) 10:21:80 Front and HO2S (Rear) switching time ratio Catalyst 10:31:83 EGR pressure variation EGR 10:3A:80 EVAP system leak detection pump gross leak check EVAP 10:3B:80 EVAP system leak detection pump small leak check 10:3C:80(1) EVAP system leak detection pump very small leak check 10:3D:80 Purge flow monitor 10:A2:0B EWMA misfire counts for last 10 driving cycles Misfire 10:A2:0C Misfire counts for last/current driving cycles 10:A3:0B EWMA misfire counts for last 10 driving cycles 10:A3:0C Misfire counts for last/current driving cycles 10:A4:0B EWMA misfire counts for last 10 driving cycles 10:A4:0C Misfire counts for last/current driving cycles 10:A5:0B EWMA misfire counts for last 10 driving cycles 10:A5:0C Misfire counts for last/current driving cycles 10:E1:80 Heat radiation ratio Engine cooling system 10:E1:81 Misfire counts for last/current driving cycles (1) California emission regulation applicable model
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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.