How to diagnose BMW P0171 P0174 lean codes E46 E39 E53

Описание: NEW CCV KIT: http://amzn.to/1U57csp
BMW TOOL: http://amzn.to/2lb9iYL

How to diagnose the common P0171 and P0174 lean codes on a BMW M54 engine.

Get rid of the codes with a new CCV Kit: http://amzn.to/1U57csp

M54 suggested maintenance: http://amzn.to/2gRRyEw

Symptoms will include rough idle, poor fuel economy. This particular car was repaired with just a new CCV crank case ventilation valve kit, and by thoroughly cleaning the dipstick guide tube. The valve cover also cracked from the excessive pressure due to to failed CCV valve, so it was replaced with a new one available here: new CCV Kit: http://amzn.to/1U57csp

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