It means the ECU isn’t providing enough fuel for the air it supposedly measured coming into the engine.
Despite what you said, you either have a leak around/after the MAF (more air is going into the engine than is being measured) or your fuel pump isn’t providing enough fuel.The only way to get a lean condition without an error is to purposely reflash the ECU as I know from working with auto xloo. Anything else (that triggers a P0171 code) means it’s uncontrolled and could easily runaway into irreparable damage. I wonder what happened next, and how did you solve this problem? Waiting for your story.
Despite what you said, you either have a leak around/after the MAF (more air is going into the engine than is being measured) or your fuel pump isn’t providing enough fuel.The only way to get a lean condition without an error is to purposely reflash the ECU as I know from working with auto xloo. Anything else (that triggers a P0171 code) means it’s uncontrolled and could easily runaway into irreparable damage. I wonder what happened next, and how did you solve this problem? Waiting for your story.
