What is code po171 mean in Toyota?
System Too Lean Bank 1
Toyota code P0171 – System Too Lean Bank 1 – YouTube. Toyota code P0171 – System Too Lean Bank 1.
What does P0171 Bank 1 System Too Lean Mean?
The OBDII trouble code P0171 – System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel. Driving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher.
What is the solution to check engine codes p0171?
| P0171 GMC code tech notes If the P0171 is combined with the P0174 code, it’s very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. If the problem persists the front oxygen (O2) sensor may need to be replaced.
What causes a p0171 code?
Intake air leaks
How do you fix code p0171?
Replace faulty vacuum hoses or gaskets around the intake
How to diagnose p0171 code?
Connect an OBD2 scanner to your vehicle.