P0422 Diagnostic Trouble Code Discussion for August 2005
Catalyst Efficiency Below Normal (Bank 1)
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| Help Request | Posted | |
| 2000 Volvo V70 X/C AWD 2.4L No Start, Stall, MIL Lamp on, Hard start VIN: YV1LZ56D5Y P0422: Catalyst. This car intermittantly has extended crank time or starts and stalls. Fuel pressure is very high and drops to 0 at rest. I plan to replace the fuel pressure regulator but wonder if the pump might have a faulty anti drain back valve. If it does have one, is it ... |
August 05, 2005 |
