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O2 sensor getting lazy? S90-V90

posted by  poolman on  Mon Dec 5 00:41 CST 2005
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last visit: Sun Dec 26 02:03 CST 2010
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Well now my gas mileage is starting to get out of wack-I replaced the rpm sensor
(original one for 225k)I got all my vacuum hoses up to snuff,good plugs and air filter and mileage has recently dropped from 27-28 to 24 open road. Car runs great,really got to watch it out on the road it wants to cruse 80 and better,idels well and has good power-but mileage is down. Last time O2 sensor was changed was about 100k ago. Do I change both out or just the front one or shoul I look elsewhere for the problem. The universal 4 wire units any good? Has anyone used these, about a hundred dollars cheaper than the OEM units.
Thanks all
Poolman






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New O2 sensor getting lazy? [S90-V90]
posted by  poolman  on Mon Dec 5 00:41 CST 2005 >


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