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Tracking down P0171

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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jtp
Posts: 490
Joined: 3 October 2007
Year and Model: 99 v70R
Location: Westminster, MD
Has thanked: 11 times
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Re: Tracking down P0171

Post by jtp »

TCV is from IPD and less than 1 year old. The mount on the airbox was messed up so it flopped around for a couple of weeks and then I secured it. Unless that would kill it I should be good though.

I'm also pretty sure the 15g turbo is screwed. I have a 16t waiting for an exhaust, so I just don't worry about it. When spooling it sounds like a metallic rattle. Would that cause a lean condition?
99 V70R AWD
Almost 155K Miles
Breaking is how I know it’s working

98 S70NA (sold)
95 850 Turbo Wagon (RIP)
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User avatar
jtp
Posts: 490
Joined: 3 October 2007
Year and Model: 99 v70R
Location: Westminster, MD
Has thanked: 11 times
Been thanked: 10 times

Post by jtp »

It was the front o2 sensor. Case Closed.
99 V70R AWD
Almost 155K Miles
Breaking is how I know it’s working

98 S70NA (sold)
95 850 Turbo Wagon (RIP)
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rmmagow
Posts: 2023
Joined: 11 March 2006
Year and Model: V70 1998
Location: Rhode Island USA
Been thanked: 2 times

Post by rmmagow »

What brand O2 sensor did you use jtp? I'm fighting the 171 too, but not too hard yet, too cold!
1998 V70 AWD 228K - Daily Driver
1985 Mercedes Benz 300D - 197K Off Road For Now Brakes Failed
1998 S70 135K - FOR SALE
2003 GMC Sonoma - 114K - POS
1958 Mercedes Benz 220S 66K Original and never to be restored.
2006 Saturn ION 5-Speed - 150K Son's weird little easy to fix car
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