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P0422 Diagnostic Trouble Code Discussion for February 2007

Catalyst Efficiency Below Normal (Bank 1)

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Trouble Ticket Help Requests for DTC P0422
Help Request Posted
1996 Volvo 850 Turbo 2.3L Hesitation, Cuts out VIN: YV1LS5724T
P0422: Catalyst effiency poor. Thanks in advance for all Volvo knowledge and advice.This 850 came in with the complaint of lack of acceleration.Test drove vehicle locally with no issues and lots of power until entering highway on-ramp.Under heavy acceleration the vehicle would cut out for a...
February 15, 2007