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B0638 Engine Trouble Code

Meaning of B0638 engine trouble code is a kind of body trouble code and when your car's 'B0638 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

B0638 Fault Symptoms :

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

If one of these reasons for B0638 code is occuring now you should check B0638 repair processes.
Now don't ask yourself; What should you do with B0638 code ?
The solution is here :

B0638 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.

B0638 Code Meaning :

B	0	6	3	8
OBD-II Diagnostic Body (B) Trouble Code For Engine	Intake Valve Control Solenoid Circuit Low	Fuel Temperature Sensor B Circuit Range/Performance	Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)	Clutch Position Sensor Circuit Malfunction

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

B0638 OBD-II Diagnostic Body (B) Trouble Code Description

B0638 engine trouble code is about Clutch Position Sensor Circuit Malfunction.

Main reason For B0638 Code

The reason of B0638 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

B0638 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.

	Example: 0140