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99 XC79 dtc P0237

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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drfishon
Posts: 1
Joined: 13 February 2011
Year and Model: 1999
Location: York, SC

99 XC79 dtc P0237

Post by drfishon »

Did the lookup on a previous blog and all pointed to the TCV. Replaced with no change. Upon key on the code becomes active. Engine runs smooth. Have check the grounds and powers. Vacuum lines apear to be good with no holes or leaks. MAP cleaned, plugs replaced. Any ideas?
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stephansvolvo
Posts: 362
Joined: 25 November 2013
Year and Model: V70 GLT 1998
Location: Longbeach, WA
Has thanked: 21 times
Been thanked: 3 times

Post by stephansvolvo »

Under codes here on MVS, the p0237 is a boost sensor, signal too low. Not sure where to point you from there. Good luck.

Troubleshooting low boost
Stephan
84 240GL my first(sold)
88 240GL(timing belt killed it)
98 V70 GLT
98 S70 GLT
73 IH Scout ii
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