P0214 Code - Cold Start Injector 2 Malfunction

What Does P0214 Mean?

Some fuel systems use a separate injector to provide additional fuel during cold starting. This injector is appropriately called a cold start injector. The design of the cold start injector circuit is like that of a regular fuel injector. The cold start injector is turned on by a cold start injector switch and/or the powertrain control module (PCM). When the injector is turned on. a solenoid inside lifts a valve off its seat, allowing the injector to spray fuel. P0214 refers to the 2nd of two cold injectors.

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A typical Cold start injector circuit

What are the common causes of P0214 ?

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

How do you troubleshoot P0214 ?

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. P0214 code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

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