C121A Engine Trouble Code
Meaning of C121A engine trouble code is a kind of chassis trouble code and when your car's 'C121A 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.
C121A Fault Symptoms :
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If one of these reasons for C121A code is occuring now you should check C121A repair processes.
Now don't ask yourself; What should you do with C121A code ? The solution is here : |
C121A 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. |
C121A Code Meaning :
C | 1 | 2 | 1 | a |
---|---|---|---|---|
OBD-II Diagnostic Chassis (C) Trouble Code For Engine | Fuel And Air Metering | Manifold Absolute Pressure/Barometric Pressure Circuit High Input | Engine Shutoff Solenoid 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.
C121A OBD-II Diagnostic Chassis (C) Trouble Code DescriptionC121A engine trouble code is about .Main reason For C121A CodeThe reason of C121A OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input. |
C121A 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.