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  #1  
Old 10-14-2008, 11:12 AM
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W124 1995 E320 fault codes 5 & 21

I pulled fault codes 5 (Exhaust gas recirculation inoperative) & 21 (Bad Purge Switch-Over Valve).

I pulled those codes because the CEL came on and I had no A/C in the cabin (nothing was coming out of the vents-just the heat from the engine)

Are codes 5 and 21 interelated? What do you think should be my first course of action on my 95 e320?

Thank you for your help in advance....

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  #2  
Old 10-14-2008, 11:50 AM
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First step is to clear the codes and see what comes back. Also build the code reader and check the other pins for codes including pin 7 for AC.
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  #3  
Old 10-14-2008, 02:12 PM
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Thank you... I erased the codes and I replaced fuse#7 (which it was bad) and so far no problems....
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Old 10-14-2008, 02:23 PM
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If code 5 comes back do a search for "EGR pipe".
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  #5  
Old 10-14-2008, 02:34 PM
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Thanks deanyel for all your info... I'll definately keep an eye on this!!!!

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