Originally Posted by smj999smj
The purpose of the updated ECM program is that the parameters for judging the catalyst efficiency have been widened in the new program....
I have an '01 QX4 and took it to my regular mechanic to see what he thought the Service Engine Light was referring to. He told me my catalytic converter needed to be replaced. Lucky for me, it was within my extended warranty.
So I take it to the dealership, and they tell me that I must first update the ECM before they can replace the catalytic converter. Of course, this is not covered by the warranty and costs $225. So I assumed that the update of the ECM loosened the standards for "Acceptable." The service rep wouldn't really elaborate, other than the fact that they were not permitted to change the catcon without doing this first. And since I need to get the work done at a dealership to fall under warranty, it sounds like I'm stuck.
I'm assuming the light won't come back on, they'll tell me that it's good to go, and right after the warranty, the light will come back on as the catalytic converter exceeds the new, wider range. Then I'm sure they'll replace it without needing a new computer program since it's out of warranty.
So not only did I pay for this warranty, but because I have it, it cost me $225 more to update the ECM, and even things that are covered don't really get covered....
Or am I just complaining too much? Anyone else run into stuff like this?