Any way to bypass both knock sensors to get rid of the codes?

[wtfemery]

New-to-me truck is not passing emissions because it has a check engine light on. P0330 and P0325 so it’s probably the knock sensors wiring harness. I really, really don’t want to do that job. Especially since this rig is almost entirely going to be used off-road. But i still need to register it.

I’ve heard of people with one bad sensor splicing the wires to the working one. Haven’t found a solution for when the whole wiring harness is bad. can I make some kind of fake apparatus to send a good signal to the ECU?

Is there anyone who’s successfully done it that can point me in the right direction?

 

[phattyduck]

The appropriate resistors will probably fool the ECU - but the knock sensor are there for a reason. If you never take the engine above 3k rpm or so, you might be ok-ish. But without the knock signal, the ECU will fully advance timing and cause knock/ping all over the place at higher RPM.

-Charlie