I had a misfire on cylinder 3 while on a long trip. Had the spark plugs replaced (they were in rough shape) and ordered an S-VCM unit. Installed it as soon as I got home. Install was relatively easy. During the first test drive, ECO did not turn on as expected. The temp gauge registered levels...
I have a S-VCM Controller (muzzler) that's about a year old. I took it off my 2008 van when I sold it recently. It has "B" written on the side of it. It worked great for me. $70 with free shipping.
https://www.svcmcontroller.com/
Hello, thank you to all who have posted very helpful information here. I have a 2013 with 107k miles. Just had timing belt and water pump service by local service shop, and then changed the plugs myself and installed the S-VCM.