Quote Originally Posted by BillBoost37 View Post
You plan on taking two wires that have different information (front vs back) and combining them w/o understanding the circuit or how the pcm reads them and ascertains info from them.

They are separate for a reason, Y'ing them will either piss off the pcm, fry the pcm, make it read wrong or simply disable the pcm's ability to tell you which cylinder is misfiring.

No matter what you choose to do.. this gauge is crap, it's not worth the $50.
I'm not arguing with you, just trying to understand how? I see the point of splicing and the possibility of the signal back feeding from one knock sensor to the next. Is there any way to isolate that? There shouldn't be any problem with the knock gauge feeding info to the PCM as that's not it's design. With the knock sensors, I'm assuming they read the same sound and are interchangeable. If that's so, does it really matter which bank the knocks coming from, the PCM sees knock and acts accordingly.