P0171 toyota fuel system too lean bank 1

OBD-II DTC: P0171 System Too Lean …

System Too Lean (Bank 1) ... Basically this means that an oxygen sensor in bank 1 has detected a lean condition (too much ... 1999 Toyota 4 Runner P0171 code My …

Code P0171 - System Too Lean - …

The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, ... the Toyota Technical Service Bulletin ...

P0171 Toyota Air/Fuel Mixture …

Possible Causes and Repair Information for P0171 Toyota ... P0171 Toyota Air/Fuel Mixture System Lean Bank 1. Menu. OBDII ... (The actual mixture ratio is too lean ...

P0171 and P0174 - OBD-II Trouble …

· OBD II Fault Code. OBD II P0171; OBD II P0174; Fault Code Definition. OBD II P0171 Fuel System Too Lean (Bank 1) OBD II P0174 Fuel System Too Lean (Bank 2)

Check Engine Light Code P0171

Check Engine Light Code P0171 System Too Lean ... monitors the fuel delivery system to make sure the engine is running at an optimum air to fuel ratio, which is 14.7:1.

Toyota Solutions: Got The P0171 …

08.02.2011 · "Too lean" means that the engine is not receiving enough fuel for the amount of air coming into the engine. In other words, the engine is receiving more ...

Code P0171 - YouTube

17.10.2009 Code P0171 means the vehicle computer is showing the air fuel mixture is lean, either too ... Code P0171 means the ... P0171 Bank 1 Lean …

P0171 System Too Lean Bank 1 …

Learn what does P0171 means? P0171 System Too Lean Bank 1. Menu. OBDII Codes; OBDII Articles; Q&A; Glossary; Find a Shop; ... P0171 TOYOTA Air/Fuel Mixture System ...

P0171 Fuel System Lean (Bank 1) | …

Fuel System Lean P0171 bank 1 means the computer ... this P0171 code is Fuel Trim System Lean (Bank 1). ... the air fuel ratio go too lean for a period of ...