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1996 850 Turbo P0422 P0326 CEL codes.

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

rguzz
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1996 850 Turbo P0422 P0326 CEL codes.

Post by rguzz » Wed May 13, 2020 3:58 pm

96 850t runs fine. P0422 popped up a couple of weeks ago, cleared it. Returned today accompanied by P0326. No detected performance problems. Remind me where to look first? Thanks.

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RickHaleParker
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Re: P0422 P0326 CEL codes.

Post by RickHaleParker » Wed May 13, 2020 5:29 pm

Clean the connector to the Knock sensors and check the wiring for shorts and opens.
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Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

rguzz
Posts: 399
Joined: Wed Oct 07, 2015 8:41 am
Year and Model: 1996 850 turbo
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Re: 1996 850 Turbo P0422 P0326 CEL codes.

Post by rguzz » Thu May 14, 2020 9:36 am

Are these codes related? Linked in any way?

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RickHaleParker
Posts: 4206
Joined: Mon May 25, 2015 2:30 pm
Year and Model: See Signature below.
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Re: 1996 850 Turbo P0422 P0326 CEL codes.

Post by RickHaleParker » Thu May 14, 2020 4:50 pm

rguzz wrote:
Thu May 14, 2020 9:36 am
Are these codes related? Linked in any way?
Possibly. P0422 is Catalytic Converter emissions efficiency just about anything that messes with the burn process can trip a P0422. If the knock sensor is not working for any reason. The ECM will not retard the ignition if the engine knocks.
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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