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  #1  
Old 06-21-2014, 01:17 PM
blueeagle289's Avatar
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Join Date: Nov 2003
Location: Dallas, TX
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Wink 99 ML 320 - stalling when stopped in Drive

I just replace an O2 sensor (hopefully the right one) but still have a problem with the car stalling when I stop it in Drive. If I give it a little more gas at idle, it will keep running.
If I shift it to Park or Neutral -- with the slightly higher idle speeds, it runs fine.

What will cause the stalling when stopped in Drive?? I did test the problem with my device that indicated only a 110 - O2 sensor problem. No other codes came up.

Thanks, Ben Carter
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1999 Mercedes ML320 87K
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  #2  
Old 06-22-2014, 09:52 AM
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Might be a problem with the fuel pump or fuel pump relay. I would secure a known working fuel pump reply and swap yours out to see if that resolves the issue.
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  #3  
Old 06-22-2014, 02:29 PM
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Location: Grand Rapids, MI
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Have you checked the air filter and cleaned the mass airflow sensor in the intake (with MAS cleaner/spray)? That can cause idle issues on the M112 engine.
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  #4  
Old 06-22-2014, 04:23 PM
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Join Date: Nov 2003
Location: Dallas, TX
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Wink Idle problems ML320

I also suspect the MAF, but will clean it to see if that helps. Thanks for the suggestion

Ben Carter
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Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)
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  #5  
Old 06-27-2014, 09:45 AM
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The 110 is a intake air temperature problem, and means you need to clean the maf and retest, a bad MAF will cause stalling.
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  #6  
Old 06-27-2014, 06:48 PM
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Join Date: Nov 2003
Location: Dallas, TX
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Wink PO110 repair reading

My reading device said it was a 110 problem and ID was specifically the Bank 2 O2 sensor 1

I did have the sensor replaced and still had the reading, but I went in and erases a large quantity of old readings. Then when I restarted the car, the Check Engine light went out and stayed out, and the stalling also stopped.

I am now driving the car 80 to 100 miles to allow the IM readings to return to "Ready"

I don't understand why you feel that the MAF was the cause, but it appears that my machine reading and the O2 replacement and the Erasing of old messages did the trick ?!
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Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)
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