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Old 12-07-2005, 10:03 PM
Ashman's Avatar
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Join Date: Sep 2000
Location: Sherman Oaks, CA
Posts: 4,749
1992 300CE M104 3.0 Check Engine Light...

My car is putting a check engine light up.

I have checked the little telltale led ont he diagnostic socket. and I got 11 flashes.

I have searched high and low for a description of these codes. I looked at jim's site, and it did not help for my model.

I searched the web that had some information on codes for a nother model with a 3.0 engine and it showed 11 for the code as air injection pump.

My pump has been making some noise lately, but may be normal.

My mechanic replaced a hose on the air injection pump several months ago when I had a check engine light.

I reset the light and it came back on I would say a week later.

I am thinking that maybe there is another issue with the injection pump,

or it is a clogged hose perhaps.

Anybody ahve any ideas?

Should I be checking anything else?

Car runs fine and no issues even with the CE light on.

I just reset it again last night as it came on yesterday evening, and will monitor if it comes on again.

'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon
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Old 12-07-2005, 10:23 PM
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Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
Originally Posted by Ashman
Should I be checking anything else?
You should build Arthur Dalton's code reader and read the codes on the other sockets. I sent you a private message.
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