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C3403 Engine Trouble Code

Meaning of C3403 engine trouble code is : C3403 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

C3403 Possible Solution:

C3403 Engine

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

C3403 Code Meaning :

C 3 4 0 3
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Ignition System Or Misfire O2 Sensor Heater Circuit Malfunction Cold Start Injector 1 Malfunction Exhaust Gas Recirculation Sensor B Circuit High

Regarding the C3403 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

C3403 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3403 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For C3403 Code

The reason of C3403 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

C3403 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.