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B3643 Engine Trouble Code

Meaning of B3643 engine trouble code is a kind of body trouble code and B3643 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.

B3643 Fault Symptoms :

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

If one of these reasons for B3643 code is occuring now you should check B3643 repair processes.
Now don't ask yourself; What should you do with B3643 code ?
The solution is here :

B3643 Possible Solution:

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

B3643 Code Meaning :

B	3	6	4	3
OBD-II Diagnostic Body (B) Trouble Code For Engine	Ignition System Or Misfire	Fuel Temperature Sensor B Circuit Range/Performance	Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)	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.

B3643 OBD-II Diagnostic Body (B) Trouble Code Description

B3643 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For B3643 Code

The reason of B3643 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

B3643 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