P0171 System too lean bank 1 on my 05 ml350 Mercedes
06-07-2019 | 09:59 AM
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Joined: Nov 2018
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From: Waldorf, Maryland
‘05 ML350 and ‘05 CLK 320
P0171 System too lean bank 1 on my 05 ml350 Mercedes
I’ve replaced the Mass Air Flow Sensor, the map Sensor and the Check Engine light went out for a couple of weeks. Now its back on withe the same code P0171. I don’t know what to do now! Help !!!
