P2322: Ignition Coil H Primary Control Circuit High

P2322 is the counterpart to P2321: the coil H control line, cylinder 8 on most V8 layouts, reads as if it were tied to voltage. GM monitors it the same way on the 2019 LT5 and L84 engines, as a Type B code, flagged once 50 of 63 samples fail. Ford names P2322 in two special service messages from 2024: SSM 52455 for 6.8 and 7.3-litre petrol trucks (Super Duty, F-53/F-59, E-Series, F-650/750) and SSM 52342 for the Bronco. Both say the PCM may file the code under the wrong cylinder and will cut fuel to the cylinder it blames; a power balance test shows the cylinder that genuinely drops out. Ford's OBD summaries add that fuel to the affected cylinder stays off for 30 s and is cut again as soon as the fault reappears. GM PIP5147 also covers P2322 on 2014 trucks.

Symptoms

• Check engine light on
• One cylinder repeatedly shut off for about 30 s (Ford)
• Noticeable vibration and loss of power

Most likely causes

• Coil H control wire shorted to a voltage-carrying line
• Coil H defective internally
• PCM assigns the code to the wrong cylinder (Ford SSM 52455/52342)
• Output stage in the engine module faulty

What to check, in order

Start with the simplest. You can tick off each step.

1. Check the connector and wiring of the coil indicated
2. Check the sensor's ground and make sure the signal wire is not receiving voltage from another circuit.
3. Check the condition of the spark plug
4. Swap the coil with another cylinder and see if the code changes
5. Measure the power supply and control signal using the manufacturer's wiring diagram

Good to know

• Repair difficulty: medium
• It can trigger limp mode.
• It affects emissions.

What each character of P2322 means

• P: Powertrain: engine and transmission
• 2: Generic code: same on every make
• 3: Ignition and misfires
• 22: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2322?

Drive as little as possible. If you feel jerking or the light flashes, stop: a misfire can damage the catalytic converter.

What causes code P2322?

The most common causes are: coil H control wire shorted to a voltage-carrying line; coil H defective internally; pCM assigns the code to the wrong cylinder (Ford SSM 52455/52342).

Related codes

• P2321Ignition Coil H Primary Control Circuit Low
• P0358Ignition Coil H Primary Control Circuit/Open
• P2319Ignition Coil G Primary Control Circuit High
• P2325Ignition Coil I Primary Control Circuit High
• P0308Cylinder 8 Misfire Detected

Sources

• static.nhtsa.gov: MC 10254127 0001
• static.nhtsa.gov: MC 10251954 0001
• gsi.ext.gm.com: 19OBDG03A Diagnostics
• newtonnet.co.uk: fordobd2012

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.