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rpm reading 10,200 before engine started in 2001 c70

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

lutzryan
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Joined: Tue Jul 30, 2019 10:57 am
Year and Model: 2001
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lutzryan

rpm reading 10,200 before engine started in 2001 c70

Post by lutzryan » Sun Oct 27, 2019 6:03 pm

Hard starting c70, 2001.

Had a throttle body replacement,
new speed sensor
new MAF

And my mechanic thinks that it may be the ECM that is showing that the engine is at 10,200 rpms. Before starting.

Any ideas what the problem is, and how to resolve?

thank you in advice.