Modify O2 sensors

[diamondlarry]

Originally Posted by zpiloto

Thanks. I'd need 2 and that's a little to much denero for me. Plus 4-6 week for delivery.

Eagle Research tries to say that you need 2 EFIE's but you only need 1. I found that out several years ago. Fran Giroux and I figured out that the only thing the rear sensor does is verify that the cat is working. Therfore, as long as the rear sensor sees a smaller voltage, the ECU is cool. The front sensor is the only one that controls the mixture so it's the only one you need an EFIE for. Plus, you save $50.