2000 Toyota Tundra Engine Code P0171

Any other suggestions would be appreciated.

2000 toyota tundra engine code p0171. Normally this is a MAF issue but anytime you have a vacuum leak anywhere on the engine the intake gets unmeasured air the measurement is done by the MAF. They had in hand fuel fouled spark plugs and no explanation as to why. Oftentimes this trouble code is accompanied by an P0174.

I connected my scan tool and observed the fuel control and feedback PIDs. Filthyphil Dec 27 2018 2. I arrived to a 2000 Toyota Tundra 34 running rough with a P0171 that was cleared by the shop.

P0171 is a System Too Lean Bank 1 which is triggered by the first exhaust oxygen 02 sensor aka upstream 02 sensor on the Bank 1 side of the engine designated as whichever side has cylinder. Tacomas 1995-2004 started by isaiahhhg Mar 15 2019. System Too Lean - P0171 Code - Toyota.

15whtrd YotaManSD11 Black Wolf and 1 other person like this. 2000 Tundra V8 P0171 Engine code. The P0171 code on a Toyota Tundra will often be thrown if the fuel injection system is not operating properly.

Cost of diagnosing the P0171 TOYOTA code Labor. The Toyota dealership said it was code P0171 -- Fuel Too Lean. For example the Toyota Technical Service Bulletin TSB EG045-07 for the 2003-08 Toyota Corolla and Matrix with the 1ZZFE engine mentions a leaking intake manifold gaskets in subfreezing temperature as a possible reason for the code P0171 along with some other codes.

Open the hood and locate the mass air flow sensor. A P0171 means that your Toyota is having trouble with a dirty or faulty mass air flow MAF sensor or a vacuum leak downstream of the MAF sensor but this code can also signify a bad O2 sensor in the exhaust on bank 1the one closest to the engine on bank 1 Also P0171 code can be tripped by a plugged fuel injector by a dirty fuel filter. There arent usually any drivability issues associated with.