What does code P1322 mean?

Q: What does code P1322 mean?

EI System Or Ignition Control Missing. P1322 on GM vehicles indicates that the engine control module (ECM) has lost the ignition control signal from the electronic ignition (EI) system, meaning it cannot confirm spark timing or detect misfires accurately. The ECM sets this code when the expected ignition control pulses are missing or erratic while the engine is running.

DTC codes / GM codes / P1322

P1322 · GMEI System Or Ignition Control Missing

P1322 on GM vehicles indicates that the engine control module (ECM) has lost the ignition control signal from the electronic ignition (EI) system, meaning it cannot confirm spark timing or detect misfires accurately. The ECM sets this code when the expected ignition control pulses are missing or erratic while the engine is running.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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