P1221 Engine Trouble Code

Meaning of P1221 engine trouble code is a kind of powertrain trouble code and when your car's 'P1221 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.

P1221 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for P1221 code is occuring now you should check P1221 repair processes.
Now don't ask yourself; What should you do with P1221 code ?
The solution is here :

P1221 Possible Solution:

P1221 Engine

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.

P1221 Code Meaning :

P 1 2 2 1
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Manifold Absolute Pressure/Barometric Pressure Circuit High Input 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.

P1221 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1221 OBD-II Trouble Code Traction Control System Malfunction Input is one of the definitions for the P1221; however your vehicles manufacturer may have a different definition for the P1221 code. Please check below for your sp P1221 code.

Main reason For P1221 Code

The reason of P1221 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input.

Parts or components should not be replaced with reference to only a P1221 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.