top of page
P0171
2019 Toyota RAV4
Toyota
Severity
Medium
Safe to Drive
Yes
Est. Time
2hrs
Difficulty
Moderate
SYMPTOM
Check engine light, rough idle at startup
Why This Happens
Toyota's fuel trim monitoring reacts quickly to small vacuum leaks, and this engine has a documented pattern of manifold gasket leaks at this mileage range.
VERIFIED FIX:
Intake manifold gasket replaced
How It Was Diagnosed
Toyota's fuel trim monitoring reacts quickly to small vacuum leaks, and this engine has a documented pattern of manifold gasket leaks at this mileage range.
bottom of page