I have a 2000 buick lesabre. The fix engine soon light came on and the code is for a faulty camshaft position sensor. I replaced the sensor and the service engine light went off. Well, the service engine light came back on a few hours later. The code was for the camshaft position sensor again. The car seems to run fine but it did stall once after the service engine light came back on, but the car started up again with no problem. Please help.
It NEVER was the camshaft sensor! Unless, you've removed the engine lately, which I doubt.
RUN to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive at least 100 miles and the problem should go away...IF it doesn't you'll have to replace the O2 sensors in the exhaust system...Any good mechanic should be able to do this for much less $$ than the dealership DO NOT go to the dealer for repairs!
Good Luck
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