where do I start the codes are p0171 p0174 and p0300
Hi there,
The codes P0171 and P0174 indicate the air/fuel mix is too lean on bank 1 and 2. Here is a list of possible causes.
P0171 LEXUS - Air/Fuel Mixture System Lean Bank 1 Read more: https://www.autocodes.com/p0171_lexus.html
P0300 indicates a misfire on random cylinders. Here is a list of possible causes.
P0300 LEXUS - Random Cylinder Misfire Condition Read more: https://www.autocodes.com/p0300_lexus.html
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