knock sensor changed but still throws code 34
knock sensor changed but still throws code 34
So as the title reads, my car is running rich and failed emissions. I've got codes 14 and code 34....code 14 i'm not worried about but code 34 is knock sensor. I followed the searched and followed the tutorial (thanks to vancouverbc for the write up) and so now i'm wondering how exactly I need to clear the codes....I followed the instructions from here http://www.ka24development.com/ecu_codes.html which state "To clear all stored codes and turn off the check engine light, turn the ‘mode selector’ screw fully clockwise. Wait at least 2 seconds, then turn the screw all the way back counter clockwise. Then start the car... ".......so my problem is that i'm still getting the same code...i have yet to take it to the emissions again to test it but anyone have any ideas about clearing the codes? i've unplugged my battery for a full day, followed these instructions and it still keeps reappearing. any help guys?
Re: knock sensor changed but still throws code 34 (jza80king)
I think i've figured it out...i'm getting code 55 now which is good! my question now is, the 'diagnostic mode selector' screw is it supposed to stay fully conter clockwise, or full clockwise before I put my ecu away?
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youngun21a
- Posts: 293
- Joined: Mon Mar 13, 2006 7:55 am
- Car: 240sx 1993 Automatic
Re: knock sensor changed but still throws code 34 (jza80king)
Fully conter clockwise..
Re: knock sensor changed but still throws code 34 (youngun21a)
dammit my car is throwing code 34 again? what the hell is going on? I changed the knock sensor, cleared the code 34 so that I only got code 55....now its throwing code 34 again.
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burnin240sx
- Posts: 1019
- Joined: Sun Feb 01, 2004 11:58 pm
- Contact:
Re: knock sensor changed but still throws code 34 (jza80king)
The harness that connects to the knock sensor to the main harness can be bad and throw a 34 code. I had that issue with my s13 ka24de.
Re: knock sensor changed but still throws code 34 (burnin240sx)
Do you know if you can just get a new kade one for the sr or are they different?burnin240sx wrote:The harness that connects to the knock sensor to the main harness can be bad and throw a 34 code. I had that issue with my s13 ka24de.
Re: knock sensor changed but still throws code 34 (jza80king)
i recomend check the knock sensor sub harness and the continuity of main harness all the way to ecm.. if its ok replace the ecm....gvgrecco..
Re: knock sensor changed but still throws code 34 (grecco28)
damn I was afraid it might be the harness. It was easy getting the sensor off but putting the sensor back on was a pain in the ***. I'll have to try the harness now.
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Initial_R90
- Posts: 1539
- Joined: Tue Jan 24, 2006 1:35 pm
- Car: 2003 Zo6 Corvette RIP BLOWN up on the dyno
2003 Evo VIII
Re: knock sensor changed but still throws code 34 (jza80king)
you need a s13 sr harness?
Re: knock sensor changed but still throws code 34 (Initial_R90)
ka harness is what I need. Anyone?
Re: knock sensor changed but still throws code 34 (jza80king)
alright guys i'm needing some further help. So i've now gotten a brand new MAF in the car, still throwing code 34.....the wiring harness for the knock sensor, I can't find one....help
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scherger_16
- Posts: 133
- Joined: Mon Jul 07, 2008 9:10 pm
- Car: 1990 240sx SR20DET, 1993 Nissan D21 pickup
Re: knock sensor changed but still throws code 34 (jza80king)
a buddy of mine had the same problem the knock sensor is fine its rare for one to go altho its not impossible. its your neutral safty switch. cant remaber exzacty what it does but i know it has something to do with the load on the vehicle and something with the injectors. i know the part isnt to much so try that out.
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scherger_16
- Posts: 133
- Joined: Mon Jul 07, 2008 9:10 pm
- Car: 1990 240sx SR20DET, 1993 Nissan D21 pickup
Re: knock sensor changed but still throws code 34 (scherger_16)
even tho the neutral safty switch isnt your know sensor it will still throw off the code of a knock sensor
Re: knock sensor changed but still throws code 34 (scherger_16)
My knock sensor was definately toast....it had a crack right down the middle so even though it didn't fix the issue i'm glad I changed it out cuz I know I would've had to change it anyway....neutral safety switch i'll have to check that out, I searched and its on the side of the transmission. Could this cause car to run rich as hell though? i guess its possible if it has to do w/injectors. Since changing the MAF my rpms will go up and down between idle and 2000 rpm and then it drops beneath idle and if I don't stay on the gas it'll die...it only does it sparingly though. It hesitated on me a few times while cruising at normal speeds too. Anyone else have any input, i'm desperate for any advice.scherger_16 wrote:a buddy of mine had the same problem the knock sensor is fine its rare for one to go altho its not impossible. its your neutral safty switch. cant remaber exzacty what it does but i know it has something to do with the load on the vehicle and something with the injectors. i know the part isnt to much so try that out.
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theother1wstolen
- Posts: 263
- Joined: Mon Jan 15, 2007 5:23 am
- Car: 92 240sx Coupe SE
Re: knock sensor changed but still throws code 34 (jza80king)
not to thread jack, but what is the part number for the KS sub harness on the s13? i cant find it anywhere.
Re: knock sensor changed but still throws code 34 (theother1wstolen)
too late.... Product sku number is 24079-s13005....check out this address http://www.courtesyparts.com/2....htmltheother1wstolen wrote:not to thread jack, but what is the part number for the KS sub harness on the s13? i cant find it anywhere.