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P0121

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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Lanrow
Posts: 1
Joined: 20 August 2021
Year and Model: 2001 v70
Location: Colorado

P0121

Post by Lanrow »

P0121 still coming in fault code. I have replaced the foot pedal and even from Swedish car parts. The car will start and run but is not drivable do to little response when pushing on foot pedal. Have followed etm bulletin from this sight on troubleshooting wiring down to etm. I have system voltage on the green wire downstream of connector going to etm. Any help would be greatly appreciated.

scot850
Posts: 14913
Joined: 5 April 2010
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Post by scot850 »

Have you tried speaking the Xemodex? They repair the ETM unit using contactless position sensors. But they can I believe help you to figure out if the ETM is the issue or something else. ETM's are an issue on 99-02 Volvos using the Magetti Marrelli (?) units.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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Clemens
Posts: 1934
Joined: 3 September 2015
Year and Model: 96 855 R + 94 855 T5
Location: Austria
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Post by Clemens »

scot850 wrote: 25 Aug 2021, 16:03 Mageti Marrelli.
Don't mention the Italian Curse by it's name, Neil, or it might come upon you!

Other than that I have nothing productive to add. Sorry, OP.
But if you have a 99 to 02 car, the ETM is a very likely culprit.
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V

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