A couple plugs I have some concerns about

[Scotty Dont]

What's up guys. First I'd like to say I tried searching but couldn't seem to come up with anything. I despise asking questions for the fear of being scolded. That being said, here's the backstory.

For the past 2 months or so I've had my CA. She runs pretty good, but could be better. The wiring seemed pretty simple and she fired on the first try after install. As of late I've noticed some symptoms going on with my motor. Here they are in list form :

1. slight stumbling at idle. almost as if it's misfiring.2. HORRIBLE gas mileage. even out of boost im getting about 14 mpg3. around 3K RPM's, the motor stumbles again, then accelerates pretty smoothly through boost.

So after some searching and reading some suggestions from others, I checked the ECU for any codes. Only throwing 1. Good ole code 34. Now I had thought that the knock sensor was wired properly, but it may not be the case. So I went under the hood. I'm running a CA lower harness with, obviously, a CA upper harness. All the plugs from the upper harness are accounted for, however, there are a few from the lower harness that are sitting lonely. Here they are :



as you can see, there are 4 plugs. 3 in my fingers, 1 to the side. yeah, I have no idea what they go to. so that being said, fellow CA lovers, can ya help me?

[Scotty Dont]

anyone ?

[oversteer180]

Those arent important man.

[Scotty Dont]

Alright cool. So that leaves me with the issue of code 34. using the ca lower harness and the ca upper harness, there shouldn't have been any wiring. and from what i've read, the chances of the knock sensor actually being bad are quite slim. opinions?