Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

How important is the knock sensor?

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Old Jun 28, 2009 | 04:00 PM
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garrett2601's Avatar
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Default How important is the knock sensor?

I broke mine when installing my rebuilt head and cant afford a new one right now is it going to hurt anything if i wait a couple of weeks?
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Old Jun 28, 2009 | 04:05 PM
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Default Re: How important is the knock sensor?

it will probably run like crap. i dont think VTEC will work either.
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Old Jun 28, 2009 | 04:07 PM
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Default Re: How important is the knock sensor?

nothing will happen, i broke mine when i rebuilt my engine and ever since then it has ran fine, youll just have to deal with a cel, thats it, and yes vtec will still work, what engine you runnin, also i ran my car for around 9 months b4 i got a new one
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Old Jun 28, 2009 | 04:20 PM
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Default Re: How important is the knock sensor?

The knock sensor is not required for the engine to run properly. It is a safety feature for the engine. When the sensor senses detonation it will retard the timing to prevent damage to the engine. I have ran my D without this sensor (broken during supercharger install) for over 3 years with no ill effects. As long as your engine is in good running condition you should be ok..
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Old Jun 28, 2009 | 04:22 PM
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Default Re: How important is the knock sensor?

I am running my 2000 civic Si without it. I have a B16A2 in it
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Old Jul 16, 2009 | 09:41 AM
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Default Re: How important is the knock sensor?

is their any way to not run it and wire something up to get rid of the cel?
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Old Jul 16, 2009 | 06:15 PM
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Default Re: How important is the knock sensor?

Yeah... just plug in the blue part of the plug into the harness and make sure the little metal parts are not touching if they are still attached to it. Then reset the ecu and the light should stay off.. Keep in mind the engine looks for the contact of the little filiments in the knock sensor to engage the cel and retard the timing therefore by plugging in the blue plug without these filliments renders the sensor useless
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Old Jul 20, 2009 | 08:04 AM
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Default Re: How important is the knock sensor?

I am not sure that makes sense to me. I will have to check the color of my wires.
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Old Jul 20, 2009 | 08:37 AM
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Default Re: How important is the knock sensor?

Originally Posted by garrett2601
I broke mine when installing my rebuilt head and cant afford a new one right now is it going to hurt anything if i wait a couple of weeks?
I had a crappy mechanic sever the wire to the knock sensor on my toyota 4X4 and I drove it for a while like that (CEL on). Eventually one of the valves chipped/broke/burned from pre-ignition, resulting in zero compression in that cylinder. The sensor detects preignition and the ECU adjusts timing and fuel mixture (richer) accordingly.

I would get that fixed ASAP and drive it like a little lamb meanwhile. On my Toyota the knock sensor was located under the intake manifold (very difficult to replace). If the Honda is easy access its a no-brainer to get it done immediately.
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Old Jul 21, 2009 | 10:09 PM
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Default Re: How important is the knock sensor?

I agree that it is important, but the block that I have did not come with one stock... which is the reason I would try to by pass it. granted it also didnt have vtec stock either. I just got to my buddies house and I will have a look tomorrow. I am going to replace it if it does have one, but if not I am going to try this by-pass trick. sorry to hear about your toyota
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Old Jul 22, 2009 | 04:41 AM
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Default Re: How important is the knock sensor?

alright just found out that the car does have a knock sensor drilled in. have not looked to see where the wire goes or if the wire is bad. but I was wondering if there were any other knock sensors that will work in this car. thanks a ton
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Old Jul 22, 2009 | 04:53 AM
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Default Re: How important is the knock sensor?

^Jacked^lol
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Old Jul 22, 2009 | 06:30 AM
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Default Re: How important is the knock sensor?

It's no big deal. Just go to the salvage yard and get one to use as a plug. I don't usually hook mine up.
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Old Jul 22, 2009 | 09:22 AM
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Default Re: How important is the knock sensor?

you dont hook yours up? do you get a cel?
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Old Jul 22, 2009 | 09:44 AM
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Default Re: How important is the knock sensor?

if you dont have a knock sensor that is in working order then your vtec "will not work." also if your engine begins knocking your ecu will retard your ign. timing and rich out your injectors....if its there keep it if it broken then fix
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Old Jul 22, 2009 | 04:26 PM
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Default Re: How important is the knock sensor?

so I was reading that all honda knock sensors were interchangeable. is that true?
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