2000 Toyota Tundra Code P0171

Driving a car with the code P0171 can cause more damage to the engine over time as when the engine runs lean the combustion temperature is higher.

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. 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 always just use CRC Mass Airflow sensor cleaner just make sure you dont touch the wires.

They had in hand fuel fouled spark plugs and no explanation as to why. Tech prelaced ECU and AF sensor. If the problem persists the front oxygen O2 sensor may need to be replaced.

Vehicle is driven within the set vehicle and engine speed range the waveforms of the oxygen sensors bank 1 sensor 1 and. If it is a 34 or a 30 the six cyl will have a left bank and a right bank for each head of the engine and each bank should have its own o2 sensor before and after the cat especially if it is the system that has two cats one for each bank Hints the error code p0171 system to. While watching the fuel trims on your scanner engine fully warmed up step on the brake pedal.

After the engine and the catalyst are warmed up and while the. Discussion Starter 1 Mar 12 2012. 2000 Toyota Tundra TRD 47.

STFT 39 LTFT 547 However currently it is running as follows. Toyota Code P0171 Definition. Or maybe used your own OBD scanner to extract the car faults.

2 trip detection logic Trouble Area. Just read through your forum and sympathize with your P0171. Tech tested AF sensor on scan tool and sensor is not responding to lean command.