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U3673 Engine Trouble Code

Meaning of U3673 engine trouble code is a kind of network trouble code and U3673 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,140 and you can't do it yourself unless you're an experienced mechanic.

U3673 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for U3673 code is occuring now you should check U3673 repair processes.
Now don't ask yourself; What should you do with U3673 code ?
The solution is here :

U3673 Possible Solution:

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.

U3673 Code Meaning :

U	3	6	7	3
OBD-II Diagnostic Network (U) Trouble Code For Engine	Ignition System Or Misfire	Fuel Temperature Sensor B Circuit Range/Performance	Cylinder 10 Contribution/balance Fault	Exhaust Gas Recirculation Sensor B Circuit High

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

U3673 OBD-II Diagnostic Network (U) Trouble Code Description

U3673 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For U3673 Code

The reason of U3673 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

U3673 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.

	Example: 0140