Visualimpact757

I have a b16 engine and it is missing the knock sensor. Is this actually needed for Vtec. Ive heard that it is and that it isnt. DO i need this to actually run my motor?

SlowLS

No. just ground out the wire for the knock sensor coming from the ecu to the body of the car. If your motor is knocking, you will know cause it is blown. If you need one, I'm pretty sure I have one.

Visualimpact757

Well i was told if i didnt connect it, it would code so i really didnt want that to happen. But yea if so how much would u want for the sensor? u jave the plug that plugs into it as well?

Abysalone

Do you even know what a knock sensor does? I dont know about hondas but I dont know why the hell you would pull that. It detects detonation and retards timing to keep your car from blowing up.

Fabrik8

It's not really needed if your setup (ECU and engine) is tuned properly.. Many people don't use them, and don't have a problem. You can go without a knock sensor if your ECU is chipped, the knock sensor output just has to be disabled in the program (chip).

Abysalone

Ahh I see. IMO its better to leave it in and tune the car so it doesnt see detonation. Then if you ever do see it, your motor may be saved. Wasnt trying to sound like a dick there, like I said I dont know much about hondas.

PRO-Habit

do the 92-95 jdm b16's running a p30 ecu need a knock sensor? Mine isnt hooked up and yet it has never thrown a code for it.....my car runs fine

Fabrik8

Strange, you should be throwing a code... JDM ECUs are funny about some stuff though, the USDM ECUs will throw a code if you sneeze.