Open or damaged wiring in the injector 2 control circuit (broken wire, corroded connector); Faulty fuel injector 2 (open internal coil or shorted winding); Short to voltage on the injector 2 control wire; Poor electrical connection at the injector 2 harness connector; Failed engine control module (ECM) driver for injector 2 (rare but possible); Aftermarket or damaged injector with incorrect resistance

DTC codes / Kia codes / P1214

P1214 · KiaFuel Injector 2 Circuit High Voltage

Q: What does code P1214 mean?

Fuel Injector 2 Circuit High Voltage. P1214 on a Kia indicates that the engine control module (ECM) has detected an abnormally high voltage on the control circuit for fuel injector number 2. This typically means the circuit is open, shorted to power, or the injector coil is faulty, preventing the ECM from properly grounding the injector to fire it.

P1214 on a Kia indicates that the engine control module (ECM) has detected an abnormally high voltage on the control circuit for fuel injector number 2. This typically means the circuit is open, shorted to power, or the injector coil is faulty, preventing the ECM from properly grounding the injector to fire it.

SystemPowertrain

Code typeKia specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Symptoms you may notice

Illuminated check engine light (malfunction indicator lamp)
Rough idle or misfire, especially noticeable at idle or low speeds
Engine hesitation or stumble during acceleration
Reduced engine power and poor fuel economy
Often no symptoms besides the warning light, especially if the injector still operates intermittently

Common causes, most likely first

Open or damaged wiring in the injector 2 control circuit (broken wire, corroded connector)
Faulty fuel injector 2 (open internal coil or shorted winding)
Short to voltage on the injector 2 control wire
Poor electrical connection at the injector 2 harness connector
Failed engine control module (ECM) driver for injector 2 (rare but possible)
Aftermarket or damaged injector with incorrect resistance

How to diagnose and fix it

Perform a visual inspection of the injector 2 wiring harness and connector for damage, corrosion, or loose pins
Measure the resistance of fuel injector 2 with a multimeter and compare to the manufacturer's specification
Check for battery voltage at the injector 2 connector with the key on, engine off (should be present on the power feed side)
Backprobe the injector 2 control wire at the ECM and check for a short to voltage or an open circuit
Test the injector 2 control circuit for continuity and resistance to ground with the ECM disconnected
If wiring and injector test good, swap injector 2 with a known-good injector from another cylinder to see if the code follows
If the code persists after all checks, suspect a faulty ECM and perform a thorough diagnostic before replacement

Don't Replace the Injector Before Checking This

A loose or corroded connector at the injector is a far more common cause of P1214 than a failed injector itself, so always inspect the pins and terminals first.
The code can set intermittently due to vibration or heat, so wiggle-test the harness while monitoring live data or using a noid light to catch an intermittent open circuit.
A short to voltage on the control wire can be caused by chafed wiring near the intake manifold or valve cover, which is often overlooked during a quick visual inspection.
Replacing an injector without checking the control circuit can lead to a repeat failure if the underlying wiring issue remains, so always verify the circuit integrity before parts replacement.
On some Kia models, a faulty ECM driver may cause a high-voltage code on multiple injectors, so check for other injector codes before condemning the ECM.

Can I keep driving with P1214?

Driving with P1214 is generally not recommended because a misfiring cylinder can damage the catalytic converter over time and may cause poor engine performance. If the vehicle runs smoothly and the light is steady, you can drive cautiously to a repair shop, but avoid heavy acceleration or long trips.

Tools that help

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Guidance is general and written for Kia vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.