I hate to see you guys buy $200 parts that might only need adjusting.

Would it help you guys if I bought another wideband O2 sensor and then loaned it out for $20 until it was paid for? Then it could move around for the cost of shipping only.

With a wideband O2 sensor you can see so much more and tune the EHA and CO/Idle.

EDIT: Ohm the EHA. If you get around 20 ohms it should be working electrically and just needs a mechanical adjustment.