Powertrain, generic (extended)

P2322 Ignition Coil H Primary Control Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

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.

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

Symptoms

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

Repair estimate

DifficultyMediumDIY possible
Parts and labour€30–400
Time0.3–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

ignition coilcoil driverignition wiring

Related codes

P2321P0358P2319P2325P0308

References: static.nhtsa.gov, static.nhtsa.gov, gsi.ext.gm.com, newtonnet.co.uk.