Thread: 1992 300CE M104 Check Engine Light (code 11)
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Old 03-27-2010, 06:52 PM
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hispassion hispassion is offline
I switched to old VW's
  
Join Date: Nov 2006
Location: Apache Junction, Arizona
Posts: 112
Vacuum is present at the switchover and diverter valves. However, the Check Engine Light (CEL) comes on about 24 hours after the code is pulled and reset. I have two 300CE's of the same year and they sound the same on start up (air pump noise), but for some reason, the one in question keeps setting code (11).

I don't really want to do this, but one thought I have is to maybe swap switchover valves (from car to car) to see if the code appears on the other one.

Is there something else I should check?

Thanks for the help!
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