What does code P1092 mean?

Q: What does code P1092 mean?

Tumble Generator Valve #2 LH Malfunction Stuck Open. P1092 indicates that the engine control module (ECM) has detected a fault with the left-hand tumble generator valve (TGV) #2, specifically that the valve is stuck open when it should be closed or moving. The ECM monitors the TGV position sensor and sees that the valve remains open despite commands to close it, which can affect low-speed combustion and emissions.

DTC codes / Subaru codes / P1092

P1092 · SubaruTumble Generator Valve #2 LH Malfunction Stuck Open

P1092 indicates that the engine control module (ECM) has detected a fault with the left-hand tumble generator valve (TGV) #2, specifically that the valve is stuck open when it should be closed or moving. The ECM monitors the TGV position sensor and sees that the valve remains open despite commands to close it, which can affect low-speed combustion and emissions.

SystemPowertrain

Code typeSubaru specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering and auxiliary emission controls

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