2000 Toyota Tundra 4.7 Engine Code P0171

2001 toyota tundra 47l has engine code p0308 checked spark plug checked coil tested injector with noid light - Toyota 2004 Tundra question.

2000 toyota tundra 4.7 engine code p0171. Oxygen Sensor The P0171 codes is thrown when the oxygen sensors do not register enough oxygen in the exhaust. Toyota Service. Remove the mass air flow sensor and clean the sensor using mass air flow cleaner or contact.

Do you have a Toyota Tundra and have a check engine light illuminated and stored codes P0171 and P0173 along with a loss of power under load. 2000 Toyota Tundra 34 P0171. After 3 years of trying to get the light off to get it inspected i took it in and said fix it.

Joined May 27 2010 4 Posts. You may have a. There is a factory service bulletin for the following Toyota.

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. 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 causing low fuel pressure or even an exhaust leak before the. My Check Engine Light Came on while driving on the highway.

Tundra 2000 47 check engine P0125 code. So your cars CEL always check Engine Light is on and also you had the codes scanned at a local parts shop. If there are no intake leaks the next step is to replace the air filter and clean the airflow meter.

END OF SPECIAL NOTES. Just read through your forum and sympathize with your P0171. I connected my scan tool and observed the fuel control and feedback PIDs.