What does p0171 mean for your Toyota?

What does p0171 mean for your Toyota?

What Does P0171 Mean For Your Toyota? Combustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0171 is triggered.

What causes the system too lean in bank 1?

What are the causes of the system too lean in bank 1 (P0171 code)? The shorter-term for the system is too lean in bank 1 is code P0171. This code means that the system is running weakly on the first engine bank and is unable to properly deliver the correct amount of fuel to power the engine.

What causes Toyota’s system too lean Bank 1 Code?

Toyota code P0171 – System Too Lean Bank 1 – YouTube Most common cause of this code is vacuum leak in your intake system….sure there are other possible problems too…. Most common cause of this code is vacuum leak in your intake system….sure there are other possible problems too…. Skip navigation Sign in Search Loading… Close

What is the trouble code on my Toyota 4Runner?

One of the most common trouble codes with the Toyota 4Runner is the P0171 code. This code number references a number that is given to you when you plug your car into a OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common.

Can a bad O2 sensor cause a p0171 code?

Of course, this code can also signify a bad O2 sensor in bank 1. Additionally, it’s rare (but still possible) that a 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 first O2 sensor€¦isn’t engine trouble code diagnosis fun?

What is the trouble code on my Toyota Prius?

One of the most common trouble codes with the Toyota Prius is the P0171 code. This code number references a number that is given to you when you plug your car One of the most common trouble codes with the Toyota Prius is the P0171 code. This code number references a number that is given to you when you plug your car into a OBDII scanner.

What does the p0171 at WOT mean?

P0171 at WOT is very indicative of a faulty MAF sensor. High fuel trims (lean conditions) in high RPM is MAF, High fuel trims at low RPM is vacuum leak. Hi guys that is what I thought.