innovate wideband o2

They are a great tool. If you get one make absolutely sure it has the RPM logging function.

I have one and it's great. Loaned it to my friend in Arkansas and his car is running much better now. No more guess work on where it's lean or rich.

Remember that there is a range that the engine will usually run best. Don't trap yourself saying you have to hit a certain A/F number.

Swapping it side to side is a good way to do it.

Just make sure you never have the o2 sensor in the tube and not heated by the unit. It will trash the sensor FAST! Also, leaded fuel will kill them. They don't like deposits sitting on them which leaded fuel leaves behind.

Look on e-bay. They pop up there every once in a while. There was one with the RPM logging for sale on moparts a month or two ago for like in the $250 range. Screaming deal.

They are having a lot of issues with the new units. If you are going to buy a new one, you might wait until the issues are ironed out.