soryu

for those of you that have replaced your sensor which one did you use?
for the DE.

Eramo323

Free!
...

DJ-of-E

It's a knock sensor, so you get crappy idle and crappy gas mileage. It's still a sensor, something I'd still refer getting oem. If you want to save $40, then just get the Boshe one.

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hOngsterr

i bought an oem one for 30 bucks. It was supposed to be aftermarket too lol

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soryu

i picked up a 7$ off ebay.
code gone.

strider hiryu

I have an extra knock sensor if you want pm me.

soryu

Thanks, but already got one.

soryu

Well I'm getting the code again.
Looks like I'll be getting the 40$ sensor.

blktopsr20

Dont waste the $40. It will not solve it..

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P-Funk alot

i have a bnib knock sensor oem too pm me if you want it. and by the way oriellys sells the oem ones still in the oem wrapper just in a bwd box

s14boy

what coads coming up? maybe your ecu's detecting knock lol. post up the coad your getting.

silver350z05rb

Oem is preffered by the ecu lol

Trap Star

Its spelled CODE genius.

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1997 240sx - Pur Pur - Got owned
1990 240sx - Coupe - In progress

JDMRIDDAZ

check the harness to knock sensor..it can get twisted up over time and start to mess
up....and DAMN near all nissans frm 90-99 use the same knock sensor...
jyard one is good as long as its not dry rotted or cracked

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シチサｎw/sr20det:stolen

soryu

i got a new sensor today.installed it reset ecu and code 34 came up.
i'll be checking out the harness to see if there is anything wrong with it.
it looked ok when i had it out.

btw,no other codes,mpg from 22-29. idle at650.no bogging.

Croustibat

These knock sensors are useless when the engine is not bone stock, just remove them and place resistors to simulate a "all is good" situation . I think that was a 500 ohm resistor on each ECU wire going to the sensor.

soryu

so i got another new sensor dropped it in code still showing.
i went thru the steps in the fsm.
check subharness for continuance, there is.
check harness for continuance, there is.
i dropped in a resistor 1/2 watt 1mega OHM. code still there.

how is the resistor supposed to be set up?
i have it each end in the wire like a staple.
or should it just touch one side?

Butcher240sx

Look at my delete thread. Ignore the dumb ass that tried to be Mr coolguy.

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soryu

both ends of the resistor should be plugged into the socket or just one?
either the + or- or one end on each?

rwtf

I would like to know as well...you used a 1mega ohm resistor? I keep hearing different ohms...so which is correct?

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soryu

i have a 1mega but it's not working unless i put it in wrong.
others say 560ohm

driftminds13

i got one i pulled of a running make me a offer

Butcher240sx

560k ohm its roughly half a mega ohm. The resistors plug in in series on the harness. 560k is what worked for me. I used multiple resistors to dissapate heat better than one.

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Butcher240sx

I've seen a lot of bad knock sensors lately. Here you go. Not my fault if you blow your engine
I just tested my knock sensor today and found it to br dead. No resistance at all. I pulled a code for a bad knock sensor. My car wasn't pulling hard before 5K rpm. The new one is $200 and a pain in the ass to change, so i decided to bypass it. The ECU sends the sensor 5VDC and returnes 2.5VDC. So you need about .56M ohm or 560k ohm.
I went to radioshack and bought a pack of 100k and a pack of 47 k resistors. i wired 5x100k and 1x47k in series and 2x47k in parellel and that gave me exactly 560k ohm. I then disconnected the harness and plugged the resistor pack into the ecu side harness. I reset the ecu and went for a drive. With a 3degree timing bump and this delete, my car pulls hard and smooth. I only run premium gas so I don't think detonation will be an issue.

Ka24,ka24de,ka24de knock sensor delete, ka knock sensor delete,

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soryu

i threw in the 560 resistor and the code still shows up.

Butcher240sx

560k right? And you plunged each end into the ecu side harness and reset the ecu. Right?

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soryu

yeah reset ecu, get 55 turn car on get 34.

soryu

so i checked my harness again for continuity.
there's no continuity. i was checking the wrong pin in the harness that's why the resistors didn't work.
i checked the ground cable and got continuity. how do i go about fixing this?

i tried adding the resistor by cutting the red and green wires and adding the resistor between them but still got the code.

i'm thinking i can snip the connector that connects to the subharness.
wire two new wires to the connector run one to the ecu and the other ground it somewhere near the engine.

soryu

where can i get one of these insulated wires?

Butcher240sx

you were supposed to unplug the sensor near the front of the head, put th resistor in its place. Not start hacking up your harness with a box cutter. also never apply votage to the ecu with a meter.

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