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Rough running cold and bad gas milage 200 1984

posted by  sdol on  Sun Nov 10 17:48 CST 2002
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Recently had a problem with the car stalling when letting off the gas and coming to a stop. I took the car into my mechanic and he fixed the problem by installing a rebuilt Air Mass Meter. Now in the morning when the engine is cold the enginge runs rough when you give it gas. It loads up and almost stalls. If I let it warm up a few minutes it runs fine. It only seems to do this when first started in the morning. Also since this AMM has been installed my MPG has dropped about 4 MPG. I have taken the car back to the mechanic but he can't find anything wrong. Could the AMM be bad? How can it be tested?








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Rough running cold and bad gas milage 200 1984

posted by  richink on  Mon Nov 11 05:17 CST 2002
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last visit: Wed Dec 22 04:40 CST 2010
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Hello,

The AMM does have an adjustment to it, to be performed only by a Volvo tech, and your o2 sensor could be caputski as well. The sign of a bad o2 sensor would also be accompanied by a slight dip in the idle when returning, or at random on it's own.

Happy Bricking!!!

Richard

87 245 DL 339,000 km
82 242 GLT 121,000 km







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