when i unplugged it, the cap came off as you can see. that little wire on the left piece, i'm assuming was soldered to that clump on the right piece. that thing sticking up on the right is like some ceramic shielding or somthing. It slides right down inside, but its partially broken.

Anyone had one of these apart before?

d


Modified by daver at 3:24 AM 8/14/2003

 

sorry to burst your bubble but its not fixable
only replacesable.

 

are you sure? I might be able to resolder it, if that is indeed how it went. these things are so bloody expensive

 

you could try to resolder
and use an exposy to put it together
and check if it gives you the specified reading with a tester

 

any idea how to test it francisco?

 

using a multimeter http://www.sears.com/sr/produc...16000

after putting the sensor back together test it and compare to the reading
to OEM specifications

 

ummm you can't test a knock sensor with a multimeter, you need an oscilliscope, which i highly doubt you have laying around I just took mine into my physics lab and tested it by tapping it with a hammer while scanning, mine was bad, checked a new one and it worked, put it in the car, and it was fine You can't use a multimeter because the knock sensor sends out a damped sine wave, not a constant voltage.

 

to answer the original question, no, you can't fix it, they are much to sensitive, if you put a glob of solder on it, it would through the balance and wieght off and the sensor would send out a different signal.

 

you can chack a KS with a multimeter. switch the voltmeter to the lowest AC voltage scale put the negative side to the sensor body, and the positive side to the sensor terminal. with the voltmeter attached to the sensor tap on it with a hammer and you should get fluctuations in voltage, if it doesnt fluctuate the sensor is bad. you should do it with the sensor removed and the wiring harness connected to it. i have done it with it still connected though. but i would buy a new one that one looks kinda shitty. you could always test it though. good luck.

 

the only proper way to test a knock sensor is with an oscilliscope.

 

does that only apply to knock sensors? Can a oscilliscope be used for other sensors? Where can you buy them?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by toolowsol &raquo;</TD></TR><TR><TD CLASS="quote">the only proper way to test a knock sensor is with an oscilliscope.</TD></TR></TABLE>

not everyone has one a hammer and multimeter works fine, i have the knock sensor bypassed on my car anyway. thats not reccomended though

 

Oscilloscopes are quite expensive. (I use a $10,000 one at work, but that's a different story). However, you can buy a small one for $300-$400. Go to the library and check out a Physics Review Journal: such as Physics Review Letters A, B, or C, or something like that. There are tons of ads for experimental equipment such as this.

However, why the hell would you waste your money on this, simply to test a KS? Go buy a new one.

 

thanks guys, i bit the bullet and ordered a new one from acura, no fooling around for me. 162$ cdn tho, ouch.

 

that is actually cheap i ordered one today for a nissan altima for a customer at work and it was 170 us dollars my cost! retail is like 215.00

 

you could ket a used KS from someone on this board for like 50 bucks im sure

 

i did take a quick look for used ones, not the same generation, used with an unknown background (sounds like they're delicate) and from stangers and probably a a longer wait. No fooling around for me.

thanks

 

nope

 

mine did the exact same thing; too bad it's not fixable....

 

yeh i sell them for 50 bux shipped US dollars...

honeslty, im curious as to how you figure the ecu works to the same degree and precision as an ocilliscope.

I always did the same thing, test it with the hammer of the block technique and it was intresting how the knock sensor would jump around. Im 90% sure that just like the TPS and map sensor, its based off voltage, and if the voltage changes, then the ECU makes corrections, and im sure it only samples so many times per second. I think you saying the ONLY way how to test a knock sensor is wrong. Im sure that one is perhaps more precise then another method, but you need to look at how the sensor is going to be used. In most case senarios, high performace hondas dont even use the knock sensors w/ chipped programs/hondata/aem ems etc

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by irev210 &raquo;</TD></TR><TR><TD CLASS="quote">yeh i sell them for 50 bux shipped US dollars...
</TD></TR></TABLE>

What do you sell for $50 shipped?

 

i did the same thing.

it might be fun to strap it to some fireworks or burn it, besides that its toast