2000 Toyota Corolla 4 cyl Front Wheel Drive Automatic 117600 miles
I have replaced the MAF, cleaned the throttle body, replaced the PVC valve, air filter & plugs. I am saving the costly " before CAT" 02 sensor for last. After about a week the check engine light reappears & the same code everyone sees (P01 something.&Quot; lean fuel mixture" ) gets thrown. Many folks have gone straight to replacing the 02 sensors & CAT, and still throw that code. I have checked the plugs and they are dry, so I don't think I have a stuck ring/piston, however the engine still burns quite a bit of oil. Also,
there is no oil on the ground. Could it be a stuck valve? Just short of removing the bulb so I don't have to look at the engine light, or disconnecting/connecting the battery once a week,
Is there any inexpensive avenue left to pursue?
Is there anything else besides the gas tank cap or filler neck I can consider? Thanks for your help.
Thursday, February 7th, 2008 AT 7:12 AM