Quote Originally Posted by The Guz View Post
I know when I did mine last year there was a connector in that area that is not used on an L36. I would need to see a pic of the area to verify.
Thanks. Since it has 12 Volts I don't think it would be a sensor so I'm leaning towards, it's not being used.

As far as the P0171, thanks for the tips. I believe I found the issue. It's the large tube (vacuum) going into the back of the intake manifold pleum. We got a new one and I forgot to put the O-ring on the connector. Therefore you could actually hear the leak. So I went and got an O-ring that kinda-sort fit. I believe the ones that came with it are probably in a landfill somewhere.

Thanks for your help.