I have a 1993 nissan altima gxe - 2.4 ltr engine with 85,000 and have been having problem passing the nox emmisson part of my inspection. I have changed the egr valve, vaccum solonoid switch, bpt valve, oxygen sensor and all of the vaccum hoses. Everytime I fail the shop keeps saying its my catalytic converter (its only two years old), my question is how can you tell if I have a 2-way converter or a 3-way converter because its my understanding is that if its 2-ways it only takes care of HC's and the CO" s which it passes. What would you recommend?
Saturday, June 30th, 2007 AT 4:41 PM