Anyone have had a problem with their S40 check engine light coming on/orr intermintely, and what corrections were taken?

Asked by Andy0918 Sep 18, 2014 at 09:37 PM about the 2006 Volvo S40 2.4i

Question type: Maintenance & Repair

Check Engine Light comes/on/off intermittently for over several months.  Codes pointed
to oxygen sensor, and was replaced twice.  Dealers believe it is coming from the
electrical harness.  Has anyone encounter a similar problem and what was done to fix the
Check Engine Light.

3 Answers

v40girl answered 9 years ago

oil changes, camshaft valve replacement, spark plugs, wires, wire harness....still comes back oh forgot oxygen sensor too!, Nada...

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Corinne answered 5 years ago

Check engine light came on. Code diagnosis was cooling sensor, replaced it and light came on a week later so they replaced the coolant gauge. Light came back on 2 weeks later came back as intermittent misfire. They turned light off and came back on and the code now is something to do with the camshaft I think. It's a 2004 S40 with 89,000 miles

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