2001 Toyota Tundra P0171

This is most cases is the AF sensor so it got changed out.

2001 toyota tundra p0171. Maybe someone will search P0171 and see this and not follow in my foot steps. Mallege Mattieo96 Luv my yota and 9 others like this. Ask Your Own Toyota.

Vacuum leaks PCV hose vacuum hoses intake manifold gasket. The mechanic replaced the MAF but heck engine light replicated so they scrapped that idea. - The amount of mixture ratio compensation is too small.

I have a 2001 Tundra 5 spd 4WD SR5 Access cab with a 5VZFE 34L V6. At 70K miles about 2 years ago my highlander started running extremely rich and would just about run. Hi Larry my 2006 Tundra V6 is showing P0171 AND P0174 codes.

Only after all those can be eliminated do you look at the fuel-air sensors. I found fuel trim to be positive indicating a lean. 2015 Tundra DC 57L SR5.

We drove around and recorded the voltages for the sensors -- 30 Volts during idle above 38 Volts. Fuel filter has not been changed in 110000 where do I start to find whats causing lean running I am thinking fuel filterI need help. I am going to try and test the MAF per the method above.

In this article I am going to be discussing the 18 24 4 cylinder engines in the Toyota Corolla Camry Rav4 and Matrix along with the V6 35 liter engine used in the Camry Avalon Solara and Sienna van. I connected my scan tool and observed the fuel control and feedback PIDs. SpeedoJosh May 24 2014 1.