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#1
10-23-2006, 10:20 PM
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Code Explanation Needed
Does anyone know the meaning of code 21: "Purge switchover valve-open or shorted?" on a 95 e320?
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#2
10-24-2006, 08:05 AM
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That is just a POORLY written code definition!
That code 21 on that car means that the purge valve isn't pulling enough vacuum on the MAP sensor! Most likely a dis-connected vacuum line, inop switch-over valve, OR bad purge valve.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#3
10-24-2006, 11:07 AM
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okkk, so how do I go about finding a solution to it besides looking around for a disconnected vacuum line?
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#4
10-24-2006, 04:22 PM
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code 21
The most common cause other than a bad valve is a leaking vacuum line at the piezo sensor located under the windsheild washer tank.
Good luck and post your fix. Mike
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#5
10-25-2006, 03:00 AM
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hmm, ill take a look down there then...thanks Mike! be back later with the results.
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#7
10-27-2006, 08:30 AM
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Y58/1 is the purge valve..left inner apron.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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