Engine Performance problem
2004 Toyota Sienna 6 cyl Two Wheel Drive Automatic 104000 miles
My check engine light comes once every month. The code is P0420. Can I test the rear cat by checking the inlet and outlet temp of the converter?How do I do that?
What else could I check?
have the same problem?
Saturday, October 11th, 2008 AT 12:59 PM