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P0455 - Should I fix it?

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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Surfmullet
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Joined: 1 February 2025
Year and Model: 2001 Volvo S60 2.4T
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Re: P0455 - Should I fix it?

Post by Surfmullet »

No. I did not. I didn't want to do any more crawling under the car. I'm old and I get dizzy when I'm lying down underneath the car for long periods of time.
I wouldn't doubt it is the leak detection pump or electrical wiring for the "correct" factory fix.

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br0dy519
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Year and Model: 2004 XC70
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Post by br0dy519 »

The test I mentioned is within the VIDA software. No climbing under anywhere except dash to plug in DICE. Commonly this pump fails and reports a leak. Also I believe there was a software update for this module / pump as it originally detected a fault at too low of tolerance.
I don’t believe restricting your vent charcoal filter should ever be necessary.

Maybe someone near you in WA can assist. I’m sure abscate wouldn’t mind driving from the east coast. :lol:
04s60 2.4
04xc70 2.5t
prwood wrote:I wish I had a permanent car repair area that was covered, had a level surface, lighting and fans, a workbench, and tool cabinets. You know,like a garage. Much of my time during the job is spent hauling things up and down the stairs to the basement or in and out of the storage shed, or running back downstairs when I realize I need something else,or taking a break from standing out in the sun,or using flashlights or work lamps when it gets dark.

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abscate
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Post by abscate »

br0dy519 wrote: 23 Oct 2025, 19:28 The test I mentioned is within the VIDA software. No climbing under anywhere except dash to plug in DICE. Commonly this pump fails and reports a leak. Also I believe there was a software update for this module / pump as it originally detected a fault at too low of tolerance.
I don’t believe restricting your vent charcoal filter should ever be necessary.

Maybe someone near you in WA can assist. I’m sure abscate wouldn’t mind driving from the east coast. :lol:
I would love to but I’m on the wrong side of the Atlantic eating Danishes.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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volvolugnut
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Year and Model: 2001 V70
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Post by volvolugnut »

Don't fix it. Just keep clearing the code to turn off the light.
Unless you live in a place that punishes you have having emissions codes set. Then move to another place!
volvolugnutr
The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
And others.

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