97 Volvo -Error Codes


Old 12-22-06, 09:08 AM
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Question 97 Volvo -Error Codes

I have a '97 Volvo 850 and am getting the following error codes: PO172 System too rich bank 1; PO440 Evap Emission Control Malfunction; PO300 Multiple Culinder misfire. Is there a coomon problem that would cause all of these or are they seperate problems. The plugs, distributor cap & rotor are new.
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Old 12-22-06, 12:37 PM
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Maybe a ignition issue which would cause all these codes.

If not ignition, a clogged cat (exhaust) would throw these codes as well.

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