2000 Toyota Tundra 4.7 Engine Code P0171

A P0171 code indicates a lean code.

2000 toyota tundra 4.7 engine code p0171. I arrived to a 2000 Toyota Tundra 34 running rough with a P0171 that was cleared by the shop. The cost of diagnosing the P0172 TOYOTA code is 10 hour of labor. Get back in the truckdrive it for 20 minutes CEL.

My 2000 has the same code. 2000 Toyota Tundra TRD 47. Tundra 2000 47 check engine P0125 code.

Take a look around and see if you can find the vacuum leak. While watching the fuel trims on your scanner engine fully. On my 05 tundra i was getting the check engine light on and the dealer said it was bank 1 and bank 2 but they werent sure.

The Toyota dealership said it was code P0171 -- Fuel Too Lean. 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. Heres a great YouTube video on how to find a vacuum leak.

After 3 years of trying to get the light off to get it inspected i took it in and said fix it. 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. The technician was a nice guy and he explained to me that the service manual lists a number of things but.

If the problem persists the front oxygen O2 sensor may need to. 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. I found fuel trim to be positive indicating a lean.