Question about 2000 Volvo S40
First things first. Check your coolant level. If that is up to snuff, then have the engine data scanned, and see if your coolant temp sensor is out of whack. If it reads very low, the pcm will give the fuel management system directions to add alot of fuel. However , as I mentioned before, low coolant can cause the temp sensor to read a cold engine(it usually must be submerged in coolant) and cause the same problem. There are more things to check, but this is the place to start. If you have no luck with these suggestions, get back to me and we'll go furthur. Good luck!
Posted on Apr 06, 2011
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Posted on Jan 02, 2017
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