Problems & Fixes: Volvo Emissions

Emissions system on our Volvos: EVAP valves, purge valve, air pump, oxygen sensors etc. Catalytic converter topics are in the Exhaust category.

October 23, 2016

California Relaxes OBD-II Smog Test Readiness Requirements

MVS Forums Moderator abscate made an interesting post about OBD-II readiness states during state smog emissions testing. It turns out that recently (2015 for California) some states have relaxed their rules about passing/failing cars without all monitors in the readiness state. Yes, this is technical nerdery that can cause you (or used to cause you) […]

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September 26, 2016

2006 XC70 Evap Pump Volvo Part

Volvo Parts Numbers Don’t Change… The numbers stay the same and the parts change. Check out Neil’s post about  a Volvo evap pump part #31392490 for his 2006 XC70: In my last post I asked if anyone could confirm that the part I purchased from Volvo was the correct part as it looked different to […]

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April 21, 2016

The Birth, Life & Death of an XC90 T6

Ok, that title was a little dramatic, but that’s the idea. MVS member XVTer bought a 2004 XC90 T6 a few years ago for his wife. In between the buying date and selling date he posted some of the best tune-up, Stage 0 and restoration info for XC90s I’ve ever seen. This is his XC90 T6 story. […]

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March 5, 2016

XC90 2.5T – Replacing Front O2 Sensor Step-by-Step

Need to replace your 5-cylinder XC90’s front O2 sensor? Use this nice XC90 O2 sensor DIY with clip connector info and photos. MVS Volvo Forum member joelq created this tutorial: The CEL on my 2004 XC90 with ~148k miles has been on with a P0134 code – “Oxygen O2 Sensor Circuit No Activity”. Pretty sure I’m […]

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February 26, 2016

2001 XC70 J-Hose Replacement Fix w Photos

MVS Contributor Eric aka deepsouth posts a DIY tutorial on replacing the evap J-hose on a 2001 XC-70, including photos: “Recently changed the evap J-Hose on a 2001 Volvo XC70 AWD. I’ve changed evap hoses on all forms of S/V70’s and 850’s but this was a new form of hell. The charcoal canister is above the rear […]

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