Knock sensor????

[H23CB7]

I swapped an H23 into my 92 accord and did not hook up my knock sensor. If your wondering why its because i didn't have the pin to wire into the ecu. I drive the car daily and was wondering what harm it will do if i leave it unhooked? Will i be loosing power or possibly damage some internal parts? Any info will be very very helpful. Thanks

[H23CB7]

anyone know what a knock sensor is?????

[aznpnoyracer]

shoudnt hurt your car, do you notice your car bogling? if so your running limp mode.

[H23CB7]

I don't know what you meen by bogling but it is kind of hesitant at low rpm. It feels like it wants to go at low range and as soon as it hits 2 grand it just takes off.

[maroonaccord2.2]

My buddy replaced his yesterday in an H22, it's something you need to have hooked up. Basically, it senses detonation and other timing related issues via means of a ultra-sensative ceramic mic..... and adjusts the timing accordingly. After it was changed, the car ran noticably better. That, and the EGR was crammed full of carbon.

They are over $100 new from Honda though.....

[H23CB7]

Yea i know there pretty expensive. Since it is my daily driver i just can't find a time when the motor is cool and im able to reach back there to plug in the wire without burning myself...

[mygreengf]

isn't the knock sensor only for vtec engines? the h23 sould be straight without one.

[H23CB7]

I don't know if it is just for vtech or not. But if i change over to the stock f22 ecu wont it put the speed limiter back to 115 or around that speed.

[drummersteve7]

original ecu

my undersatnding is yes it will, but at the same time your car will run like it should until you have the time to get that knock sensor wire in correctly. For a DD you should just chill a couple of days till its fixed Then go faster than 100. So IMO that would be what I would do!

[H23CB7]

i don't go over 100 anyways well at least i don't think i do cause the speedometer stopped working when i did the swap. Probably the vss. But i guess i could always run my stock ecu. Thanks

[NAiL05]

First of all if your KS is not hooked up and your car isnt runnin properly DO NOT GO PAST 100...I dont even know why you would need to go that fast on a daily basis. The KS retards timing if it senses anything like detonation and all that in the motor. SO it will slightly hinder performance. And no the KS did not only just come in VTEC motors. They also came in non vtec motors.

[H23CB7]

I have only taken it up past 100 once, for sure that i know about. you always have to test something out when you do a swap or some performance mods. but i am actually going to the junkyard today to get some other things and im driving my moms car there so when i get back i can hook up the KS withoput burning the shit out of myself. Thanks for all the info.

[H23CB7]

Update on the KS: I hooked it up after going to the junkyard and man does she run better. It doesn't sputter at low end anymore and has more pickup[ through the gears. Thought i should let everyone know. Thanks again for everyones help.

[bjaccord]

Glad you got it figured out. Have fun with it.

L8r

[wed3k]

that is my problem to my headswap.

i get hesistation and when the CEL comes on (just check it, knock sensor), it loses all power.

looks like ill be running the pt6 ecu.