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2007 Mazda CX-7 Touring 2.3L MIL Lamp on
The customer brought this in saying that it needed a catalytic converter. As I was looking the data on my scantool I noticed the heater on the downstream o2 sensor (B1S2)does not or isn't signaled to turn on until after the engine had reached normal operating ...
FIX posted 2/1/2016
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Message Closed w/FIX
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5 Replies Received
5 Replies Received
Related Documents & Media | VIN | JM3ER29347 |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Start Up |
Trouble Codes
| P0234 | Turbocharger Overboost Problem |
| P0421 | Catalytic Converter Efficiency (Bank 1) |
Message Closed w/FIX
Vehicle Data
2007 Mazda CX-7 Touring
| VIN | JM3ER29347 |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Start Up |
Trouble Codes
| P0234 | Turbocharger Overboost Problem |
| P0421 | Catalytic Converter Efficiency (Bank 1) |
Video