ok so I have a ef with a b20v its running like **** right now due to bad map sensor but im also throwing a code for knock sensor
Im using a stock pr3 jdm crx ecu
Now I heard that if my knock sensor is throwing the code not only is it annoying but it well also not engage v-tec.. Is there a way to bypass the knock sensor or do I have to wire it up to the ecu?

 

Fix your map sensor issue and the knock may go away.
Why would you want to rev up into vtec RPM if you know the engine is running poorly?
Sounds like you are just asking for costly repair bills.

 

I honestly don't even know why I post on here, I guess I'm just praying the right person will come along and post but that obviously hasn't happened. First off there is no KNOCK, the computer is throwing the code because it is not wired up hence why I asked "do I need to wire it up or is there a way to bypass it" because knock sensors are known to be annoying they will retard the **** out of your timing if your exhaust shakes or anything like that. 2nd When did I say im racing/revving in to V-TEC? I just know that with the knock sensor throwing the code it will not engage in V-TEC because it retards the timing.

 

PLEASE TAKE THE TIME TO READ AND COMPREHEND MY POST IF YOU ARE GOING TO RESPOND. Gracias!

 

Honestly, I don't know why you post on here either.
Your guess is as good as mine.

I assumed you had the knock sensor wired in. Now you have made it obvious that the reason you are getting the CEL in the first place is because you don't even have it hooked up.
(You have the sensor.... it's one wire to hook up... ummm?????)

It wasn't clear in your first post what you are asking.
From your new posts, it seems that your question has nothing to do with the MAP sensor (first thing mentioned in your post) nor vtec (also mentioned in your post)
It now seems that you are simply wondering if it is a good idea to wire up a knock sensor or if you should bypass it.
(Your post would have been more comprehensible if you would have just cut to the point and asked that right out.)

Answer: Yes and no.
If you don't have any wild mods (people with a Jackson superchargers and mild turbo kits successfully run the stock knock sensor) and if you don't have a dumpster special engine bay with stuff banging and vibrating around all over the place, then the knock sensor is a good device to have for a little safety insurance.
That is all it is though - if it detects combustion detonation then it helps you out by adjusting timing and saving you from internal damage to your motor.

You don't NEED the knock sensor circuit so it is possible to bypass it.
The common method is to chip the ECU and disable knock via chipping.
If ECU modding isn't your thing, you can easily search Google and find hardware bypass solutions like this
https://honda-tech.com/forced-induct...-woot-1181854/


Take some time to hook up your knock sensor before asking if you should bypass it.
Take some time to fix your broken MAP sensor.
Take some time to write posts that can be easily comprehended.
Don't even cast a single worry about knock disabling vtec. Your engine runs poorly and you didn't even hook up all your sensors.