Get yourself an AFR meter!
I have used the cheapo AutoZone narrow band setups for a few years, and they work well. I know there is no comparison to a nice wideband, so I decided to buy one so I could learn a little more about what is going on in my motor. I purchased the same Innovate kit as mentioned above, and it looks like WAY more than what I wanted. Are all wideband sensors similar to this, meaning do they all have the giant control box with them? Its moiré wiring than I want to do at this point in the build, and I think I might be looking to get rid of it.
