2000 Toyota Tundra Code P0171

The P0174P0171 codes Fuel system too lean banks 1 and 2 usually means a vacuum leak from the intake manifold gasket a vacuum hose PCV hose etc or the MAF is dirty or theres a fuel delivery problem clogged injectors fuel pump going out etc.

2000 toyota tundra code p0171. If there are no intake leaks the next step is to replace the air filter and clean the airflow meter. The code technically stands for. The OBDII trouble code P0171 - System Too Lean Bank 1 means that the engine air-fuel mixture is too lean or there is too much air and too little fuel.

Bank 1 sensor 2 have the same amplitude. Remove the connector remove the screws and remove the sensor. 2000 Toyota Tundra TRD 47.

Code p0171 2000 toyota 4Runner with a 34L - Answered by a verified Toyota Mechanic. Vehicle is driven within the set vehicle and engine speed range the waveforms of the oxygen sensors bank 1 sensor 1 and. I am getting a PO171 engine code.

What Does P0171 Mean For Your Toyota. CEL OFF WITH P0171 174 CODES RPM. Jump to Latest Follow 1 - 3 of 3 Posts.

Oftentimes a P0171 means that your Toyota is having trouble with a dirty or faulty mass airflow MAF sensor or a vacuum leak downstream of the MAF sensor perhaps in the PCV line or in the valve itself. Just read through your forum and sympathize with your P0171. Fuel Trim System Lean Bank 1.

Open the hood and locate the mass air flow sensor. Discussion Starter 1 Mar 12 2012. P0171 TOYOTA code tech notes If the P0171 is combined with the P0174 code its very likely that the problem is caused by an intake leak.