code P0171

2002 TOYOTA COROLLA

218,228 MILES

ST8WC80

MEMBER
1 POST

Engine light came on. Had it checked and came out with P0171. What does this mean? My car has also had problems when taking of at a stop. Slow to take of when at a stop. Seems to have less power at ones as well.

May 18, 2012 at 5:44 PM

DANNY L

✓Experienced Mechanic
5,648 POSTS

Hello, I'm Danny.

This code means the engine is running lean. Unmetered air is being introduced into the engine by a leak causing this condition. I've attached picture diagnostic steps below for this code. Hope this helps and thanks for using 2CarPros.

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Dec 23, 2020 at 4:43 AM