B2121 Engine Trouble Code
Meaning of B2121 engine trouble code is a kind of body trouble code and when your car's 'B2121 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.
B2121 Fault Symptoms :
If one of these reasons for B2121 code is occuring now you should check B2121 repair processes.
Now don't ask yourself; What should you do with B2121 code ?
The solution is here :
B2121 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.
B2121 Code Meaning :
|OBD-II Diagnostic Body (B) Trouble Code For Engine||Fuel And Air Metering (Injector Circuit Malfunctions Only)||Fuel Rail/System Pressure - Too High||Turbocharger Boost Sensor A Circuit Low||Crankshaft Position Sensor A Circuit Low Input|
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.
B2121 OBD-II Diagnostic Body (B) Trouble Code DescriptionB2121 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.
Main reason For B2121 CodeThe reason of B2121 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.
Parts or components should not be replaced with reference to only a B2121 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.