2000 Toyota Tundra Code P0171

2 trip detection logic Trouble Area.

2000 toyota tundra code p0171. Fuel Trim System Lean Bank 1. Code p0171 2000 toyota 4Runner with a 34L - Answered by a verified Toyota Mechanic. System too lean Bank 1.

2000 Toyota Tundra TRD 47. Therefore this guide will briefly discuss the nature and causes of code P0171 as it relates to V-type Toyota engines. 965 LBM Bank 1.

While watching the fuel trims on your scanner engine fully warmed up step on the brake pedal. I always just use CRC Mass Airflow sensor cleaner just make sure you dont touch the wires. CEL OFF WITH P0171 174 CODES RPM.

Tundra P0171 Code Defined. 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. Only after all those can be eliminated do you look at the fuel-air sensor s.

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. STFT 08 LTFT 555 BANK 2.

Just read through your forum and sympathize with your P0171. Of course this code can also signify a bad O2 sensor in bank 1. Bank 1 sensor 2 have the same amplitude.