C1672 Infiniti G20 OBD Code

OBD/2 C1672 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

In most cases, the TCM is integrated into a single housing with the PCM. Nevertheless, the section of the module which controls (automatic) transmission function may be powered up separately. In any case, the TCM is typically powered using switched (only present with the ignition switch in the ON, start, or run position) voltage. This circuit is normally equipped with a fuse, fusible link, and/or a relay. Frequently, the PCM and TCM are powered using the same relay albeit by separate circuits. Access to a reliable vehicle information source will yield necessary details of the TCM power circuit for the specific vehicle in question.

C1672 Infiniti G20 Error Code Repair Process :

If your o2 sensor circuit malfunction (bank 1 sensor 1) check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C1672 and engine control unit are in charge of monitoring a bunch of different o2 sensor circuit malfunction (bank 1 sensor 1), and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Soso)

Repair Time (30 Min.)

Cost Prediction : $ 80-120

Common Causes of Infiniti G20 C1672 OBD2 Code

A common cause of code C1672 is the failure of O2 Sensor Circuit Malfunction (Bank 1 Sensor 1), but there are several other possible causes as well, such as ;

• Dirty Oil
• Exhaust tube
• Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
• Faulty TCM or TCM programming

C1672 is a kind of Chassis Trouble Code Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

C1672 code for other Infiniti cars

You can view according C1672 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• C1672 Infiniti Ex35
• C1672 Infiniti Fx30
• C1672 Infiniti Fx35
• C1672 Infiniti Fx45
• C1672 Infiniti G35
• C1672 Infiniti G37
• C1672 Infiniti I30
• C1672 Infiniti I35
• C1672 Infiniti J30
• C1672 Infiniti M35
• C1672 Infiniti M45
• C1672 Infiniti Q45
• C1672 Infiniti Qx4
• C1672 Infiniti Qx56

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