Found these explanations:
214 indicates an error has been detected in the Cylinder Identification (CID) input signal. The error could be due to a hard fault or an intermittent condition.
Possible causes:
* Open or shorted harness.
* Damaged Camshaft Position (CMP) sensor.
* Damaged Crankshaft Position (CKP) sensor.
* Damaged Ignition Control Module (ICM).
* Damaged Powertrain Control Module (PCM).
Before you go and replace the CMP, CKP or ICM, I would clear the code and see if it comes back. If it does, check for a loose or dirty connector at the CMP CKP and ICM. If they are clean and tight, and there is no damage to the wiring, have the codes pulled by an OBD-II scanner and get the P code. This will pinpoint the problem, CMP, CKP or ICM.
The code 10 "snap throttle" is not a code, it is a command- literally telling you to blip the vehicle throttle. Snapping the throttle open is required to run one of the tests. If you don't do it, you get the 538 code.-which means you are not running the test to the scanners satisfaction