Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

codes 143 and 315

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Old Dec 17, 2009 | 04:36 PM
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Default codes 143 and 315

I got the obd1 codes on the a2 port from my 94 850 turbo auto. I got codes 143 and 315. I went to Matthews Volvo forum and 315 is EVAP system...so where do I go from here?

Then the 143 code means KS knock sensor missing or faulty. I found out after I erased the codes that I should be checking the different ports for other diagnostics.....
 

Last edited by ruggles; Dec 17, 2009 at 05:07 PM.
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Old Dec 18, 2009 | 05:17 PM
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I take it I need to replace one or both of the knock sensors and the evap valve?
 
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