System too lean bank two
SOURCE: check engine code -- lean bank code
If that's the only code, it's likely the primary O2 sensor (before the catalytic converter). That's the one that determines the fuel mixture.
SOURCE: system is running to lean on bank one
As it says just one bank I would suspect possibly an injector or lambda. In Vagcom you can do a lambda load test, I suggest you do this as it individually does each lambda sensor to check it.
Check your injectors as well.
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SOURCE: what does bank 1 too lean mean on audi 2003 a4
please some specification what motor u have with diesel or what?
When the engine light flash you are driving or before you start the car. And if u can more aether specification. Thank you
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