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Have a 2002 Ford E350 van that was upgraded to 4x4. Had some issues the last couple weeks that I am working through and now believe the rest of them are resolved. But when I throw the ForScan software at the van I am still getting a P0476 Exhaust Pressure Control Valve malfunction error. Do I need to worry about this one? I’ve already cleaned the Exhaust Back Pressure sensor tube and confirmed that the EBPS is working, or at least that the voltage is changing as the RPM go up and down. Or is there something else more specific I should chase here?
