2000 Toyota Tundra 4.7 Engine Code P0171

Your car or truck has either a P0171 P0174 lean fault code or both stored in the.

2000 toyota tundra 4.7 engine code p0171. Of course this code can also signify a bad O2 sensor in bank 1. Or maybe used your own OBD scanner to extract the car faults. If the problem persists the front oxygen O2 sensor may need to be replaced.

2001 toyota tundra 47l has engine code p0308 checked spark plug checked coil tested injector with noid light - Toyota 2004 Tundra question. My 2000 has the same code. 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.

Discussion Starter 1 May 27 2010. Remove the mass air flow sensor and clean the sensor using mass air flow cleaner or contact. Most auto repair shops charge between 75 and 150 per hour.

Reconnect any disconnected vacuum lines and replace any damaged vacuum lines that are leaking then use FIXD to clear check engine light code P0171. If check engine light code P0171 is triggered again check the rest of the vacuum lines for leaks and continue to the rest of the diagnostic process. I have a 2001 Toyota tundra 4wd SR5 8 cyl 47L gas FI Truck with 11700 miles.

They had in hand fuel fouled spark plugs and no explanation as to why. If there are no intake leaks the next step is to replace the air filter and clean the airflow meter. I found fuel trim to be positive indicating a lean.

If there are no intake leaks the next step is to replace the air filter and clean the airflow meter. While watching the fuel trims on your scanner engine fully. The brake booster is vacuum assisted and works off of engine vacuum.