B0420 Engine Trouble Code
Meaning of B0420 engine trouble code is : When your car's 'B0420 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.
B0420 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.
B0420 Code Meaning :
|OBD-II Diagnostic Body (B) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||O2 Sensor Heater Circuit Malfunction||Turbocharger Boost Sensor A Circuit Low||Shift Solenoid E Performance or Stuck Off|
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.
B0420 OBD-II Diagnostic Body (B) Trouble Code DescriptionB0420 engine trouble code is about Shift Solenoid E Performance or Stuck Off.
Reason For B0420 CodeThe reason of B0420 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.
Parts or components should not be replaced with reference to only a B0420 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.