PeachParts Mercedes-Benz Forum - Wiring Problem (Ground) in W210?

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aspett

04-28-2007 01:18 PM

Wiring Problem (Ground) in W210?

I am getting a PO446 (EVAP Emission Control System Vent Circuit Malf) error. Both the Charcoal Canister Shut-off Valve and Purge Valve are only getting ~6.6V through connector with ignition on, but 12V when connected to a chasis ground. Jumping ground doesn't eliminate code. Does anyone know where I might look for the problem (common isolated ground point?), or is this the correct voltage?

stevebfl

04-28-2007 02:38 PM

I think it may be correct.

aspett

05-03-2007 10:50 AM

I put in a new Charcoal Canister Shut-off valve and all seems to be OK now. Thanks!

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