P0638 Engine Trouble Code
Meaning of P0638 engine trouble code is a kind of powertrain trouble code and when your car's 'P0638 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.
P0638 Fault Symptoms :
If one of these reasons for P0638 code is occuring now you should check P0638 repair processes.
Now don't ask yourself; What should you do with P0638 code ?
The solution is here :
P0638 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.
P0638 Code Meaning :
|OBD-II Diagnostic Powertrain (P) 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.
P0638 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0638 OBD-II Trouble Code The Powertrain Control Module ( P0638 code.
Main reason For P0638 CodeThe reason of P0638 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.
P0638 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.