Knock sensor questions

bigal0043

bigal0043

New Member
Jun 29, 2005
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Alright my ks next to the starter is broken off. what size bolt/nut is it? i heard like 22 or 24mm? If i get a long enough extension to come out past the intake i should be able to get it off, without having to take the intake off?

Should i do a rewire while its down??

Also would you trust buying a used one off ebay?
 
DaSuprawolf

DaSuprawolf

Im SICK of N/A
Dec 29, 2005
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ChicagoLand
15/16 fits well. you shouldn't have to take the intake off, and i've herd of people getting to the rear KS without removing the starter.
Good luck.
 
DaSuprawolf

DaSuprawolf

Im SICK of N/A
Dec 29, 2005
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ChicagoLand
no the hole is a dead end, just some threads to hold the sensor.
hope you get fixed, i just did mine (N/A tho) and im glad to have the power back!
-Brian
 
bigal0043

bigal0043

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Jun 29, 2005
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see i didnt even notice a loss in power.. its been this way since i took it back on the road after winter... so i must have forgotten what power she really had


Should i do the rewire mod while im going through the process of taking out the sensor?
 
DaSuprawolf

DaSuprawolf

Im SICK of N/A
Dec 29, 2005
456
0
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ChicagoLand
yeah i was like that too, i just rebuilt my engine and when it went back in the sensor its self was bad (very reare) but when i got it fixed, it was a BIG difference, did you have code 52? was your engine light on?
about the re-wire, its a good idea but involves some time.i didnt need it, but i also checked for continuity from the plug to where it goes into the ECU . it's preaty easy to do but you also could have a short. if it was me, i'd put the sensor in and go from there. make sure you clear your codes too.
good luck
-Brian P.S. I love these quick replays ;)
 
S

steve_mk3

Supramania Contributor
Mar 30, 2005
334
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middletown, NJ
You should do the rewire.

Just because you have connectivity does not mean that the wiring is good. It has to do with the shielding on the wire. It is a known problem so while your in there you might as well take care of it.

I have heard on different years the starter may have to be removed to get the sensor out. I loosened the starter and was able to get the sensor past the starter.

It would be much easier to access the sensor with the upper intake manifold removed but can be done with it in place. You may want to try from under the car.

There is alot of information about the rewire and testing the KS on here, and I believe some of the members sell rewire kits already made.

Good luck

Steve
 
Nick M

Nick M

Black Rifles Matter
Sep 9, 2005
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bigal0043 said:
Alright my ks next to the starter is broken off. what size bolt/nut is it? i heard like 22 or 24mm? If i get a long enough extension to come out past the intake i should be able to get it off, without having to take the intake off?

Should i do a rewire while its down??

Also would you trust buying a used one off ebay?
Click to expand...
All OEM nuts and bolts are metric.

Yes, an upgraded rewire is a good idea, as many have trouble with
open/short trouble code.

I wouldn't buy a used knock sensor. The only reason to sell it is it does not work, or the car is scrapped and being parted. It isn't like buying an intake manifold. It may work, it may not.
 
theKnifeArtist

theKnifeArtist

Fire on High!
Apr 6, 2006
2,332
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North Jersey
if you dont gotta rewire..i just got mine with an adjustable wrench. was easier than gettin it with a socket cuz of the shape. just shuve your hand down there.
 
bigal0043

bigal0043

New Member
Jun 29, 2005
813
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Plattsburgh,NY
www.mk3supra.net
yea ill have to play with it tomorrow adjustable wrench is not a good idea for me.. the one i has is a china cheapy as soon as you put any force on it.. it falls apart.. so ill have to go find a 24 mm wrench


and i bought a used one off a 40k jdm engine so it should be just fine.. i was reading some posts and saw that they dont fail that often its mostly the wires
 
theKnifeArtist

theKnifeArtist

Fire on High!
Apr 6, 2006
2,332
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North Jersey
mine wasn't bad. it was broken in two. back when my dad still drove the car he gave it to the mechanic for something..upon leaving the shop...whats this? checkengine light? loss of power? hmmm..what could be wrong....2 years later after my dad neglected it because the car still ran...i stuck my hand in there and found the problem.:nono: the problem caused by a problemsolver.

sm_photo_missing.jpg
 
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