2000 Toyota Tundra Code P0171

System too lean Bank 1.

2000 toyota tundra code p0171. Therefore this guide will briefly discuss the nature and causes of code P0171 as it relates to V-type Toyota engines. They had in hand fuel fouled spark plugs and no explanation as to why. 965 LBM Bank 1.

My 2000 has the same code for the last 6 months. Open the hood and locate the mass air flow sensor. CEL ON WITH P0171174 CODES RPM.

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. Tech tested AF sensor on scan tool and sensor is not responding to lean command.

Remove the connector remove the screws and remove the sensor. Jump to Latest Follow 1 - 3 of 3 Posts. Tech prelaced ECU and AF sensor.

Only after all those can be eliminated do you look at the fuel-air sensor s. Your car or truck has either a P0171 P0174 lean fault code or both stored in the pc these. The following is freeze frame data from the code.

If there are no intake leaks the next step is to replace the air filter and clean the airflow meter. After the engine and the catalyst are warmed up and while the. The exact vehicle in.