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Old 03-26-2020, 08:57 PM
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Join Date: Oct 2007
Posts: 7,260
R320 Bluetec- miss above idle, no power, but NO CODES!

This car has a miss above idle, and has very little to no power. I scanned the 2009 R320 with my Icarsoft MB II, and found no codes in any of the systems (SCR and engine). It was running fine a couple months ago with a CEL from a bad DEF pump. I replaced the pump, and it has not ran right since. The pump seems to work, as the fault code did not come back (or any other fault code for that matter). The engine is an OM642 just like those in the E class, Sprinter, and others. Any ideas?
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