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P0173 Diagnostic Trouble Code Discussion for June 2004

Fuel Trim Lean Or Rich (Bank 2)

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Trouble Ticket Help Requests for DTC P0173
Help Request Posted
1999 Mercedes-Benz ML320 3.2L MIL Lamp on VIN: 4JGAB54E3X
P0173: self adaption out of limits left. ... SUV came in for tune, and the check engine light on. After doing tune and several test drives the light came back on with the same 2 codes p0170, and p0173. I have tested for vacuum leaks and have found none. The intake is hard to see and I could be missin...
June 29, 2004