Sounds about right. I might try a higher risistor to see what it does. Actually I think that was my next troubleshooting step hahaRuzty1311 - I need to let others with more experience weigh in. My initial experience is that it has not kicked in at lower speeds. Not sure if it's the colder air - winter in NY - that keeps the engine cooler. If your in CA, it may need a higher resistor to account for warmer weather. That's what I've read so far, anyway. I'll be interested to learn more.
John - What's the deal about the key being on within 30 minutes? I had this happen when I removed VCMuzzler (direct connection) after running the engine with it for some time (swap was done with engine off, but within 30 minutes).Did you have the key on that morning before you installed it? If the key was on within about 30 minutes of installing the Muzzler then you set a P0118 code when you unplugged it. You need to get the code read to know...it could be one of hundreds of other codes for something not even related.