What does code P029C mean?

Q: What does code P029C mean?

Cylinder 1 - Injector Restricted. P029C indicates that the powertrain control module has detected an abnormal condition in the fuel injector circuit for cylinder 1, specifically that the injector is restricted or its electrical circuit is not performing as expected. The computer monitors injector response and circuit integrity, and when the signal does not match the commanded pulse width or current draw, it flags the injector as restricted.

DTC codes / P02xx · Fuel and air metering (injector circuits) / P029C

P029CCylinder 1 - Injector Restricted

P029C indicates that the powertrain control module has detected an abnormal condition in the fuel injector circuit for cylinder 1, specifically that the injector is restricted or its electrical circuit is not performing as expected. The computer monitors injector response and circuit integrity, and when the signal does not match the commanded pulse width or current draw, it flags the injector as restricted.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

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