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Old 07-30-2002, 02:32 PM
pmizell's Avatar
Benz Zealot
Join Date: Jun 2001
Location: Houston, Texas
Posts: 838
Un-erased fault codes

I am just curious to know if un-erased fault codes will keep an engine's computer running in fixed operating mode even though a repair was made? (O2 sensor, bad EHA, etc)



'91 300E, 215K miles
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Old 07-30-2002, 02:38 PM
I told you so!
Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,741
I don't know specifically about Mercedes, but I really doubt it. The computer stores the codes simply for retrieval purposes. This allows the mechanic to diagnose the problem, and even helps with intermittent faults. There's no feedback mechanism to control the engine's operating parameters.
95 E320 Cabriolet, 131K
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