I would like to "Thank you so so much" to dsplc.
My 99 Camry's Check Engine Light problem solved and State Inspection passed. Mainly I believe is by replacing the EGR Modulator by my self with a neighbor's help.
But this is interesting, please read on:
I had changed 4 spark plugs, air filter, and gas cap, before changing the EGR Modulator ($54.99 from AutoZone). After changing the EGR Modulator, I again unplug that fuse to turn CEL off; but the CEL came back after 2 days, I was disappointed. While driving the car for several more days & planning to visit a mechanic shop with credit card ready to pay the big charge, that CEL light is Gone By Itself!
I immediately got the State Inspection done.
I was happy until that CEL came back 2 days later! Well, at least no hurry to fix it then. But the CEL again gone by itself 1 day later! And did NOT come back for more than a week now, I guess the system just need several days to decide which way to go.
Those simple parts that I replaced (and maybe Oil change & premium gas) could all helped a little, with the EGR Modulator the final cure.
Thanks to dsplc again!
Thursday, August 19th, 2010 AT 2:21 PM