P3191Engine does not start (hybrid)

• Toyota/Lexus code · Hybrid system
• Turns on the check-engine light

How the car detects it

The hybrid system tried to start the petrol engine but it didn't start running. The car may still drive on the battery for a short while. Check fuel level first; on 2010-2013 Prius and 2012-2013 Prius v Toyota also found a detached purge (EVAP) hose at the throttle body behind this code.

What you may notice

• Check-engine light
• Engine does not run; limited driving on the battery

Likely causes

• PossibleFuel supply: empty tank, fuel pump or filter
• PossibleAir leak, such as a detached purge hose
• RareIgnition or sensor fault

Sources

• static.nhtsa.gov › MC-10111144-9999.pdf · official document

Backed by an official manufacturer document.

From Obdaryn's Toyota/Lexus pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.