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s13pignose
04-19-2009, 07:12 PM
http://www2.zhome.com:81/ZCMnL/PICS/detonationSensor/detonationSensor.html

Thinking about using those instructions. Basically what I'm working with is the 2 wires leading to the connector that plugs in on the sub harness correct?

Now What throws me off is he says when you run the resistor jumper wire style temporarily...if you still get a code the problem is not the knock sensor but rather the wiring? So how is it suppose to solve anything? When he wires it in permanent it's still off of the two ecu wires, so how is it changing anything? If it didn't work at the connector, whats gonna make it work off of the wires going to the connector?

2nd and last he said the way he wired in the resistor permanent still lets the ecu on in fail safe mode if the knock sensor issue is intermittent..but how so if your tricking the ecu with the resistor. How will it still detect a problem your suppose to be covering up all along lol?

Anybody? I appreciate any input. Like to one day solve my code 34 for good, but I need something to get by on til then

s13pignose
04-19-2009, 07:19 PM
Oh yeah friend of mine said just unplug it, but I don't see how that would help? Then the ecu is getting no feedback what so ever, so wouldn't it think things are stilll wrong leaving me with a code 34 still? Plus I want my MPG and power back..don't wanna unplug it and have same results

s13pignose
04-20-2009, 12:24 PM
any ideas?

projectRDM
04-20-2009, 03:39 PM
Bypassing it temporarily as shown will indeed verify if it's a sensor problem, but I would add the resistor at the ECU, not under the hood, to also eliminate the wiring harness as the possible culprit. If the sensor is indeed bad the resistor will make up for that, whereas if the wiring is bad, placing it under the hood doesn't solve the problem, not unless both are bad and then you've just diagnosed one problem, not both.

s13pignose
04-21-2009, 01:07 AM
Was sorta thinking that too..if the wiring is bad gonna be left with the same problem. How exactly would you go about it at the ecu. I've rear about grounding one end of the resistor to a good ground close to the ecu..but the other end splice into the knock sensor wire? I thought it was shield where the outer wire acted as a ground and the inner was the signal? So how would I splice into that..or do you somehow do it near the ecu KS pin?

s13pignose
04-21-2009, 01:09 AM
Also just wondering out of curiosity.if I took my car to nissan dealership what exactly do you think they would do to fix it or do you think they would just scratch their head and have me waste money on unneeded parts? Would like to get it fix the right way..but not waste time and money. Just use the resistor trick to get by.

Also I'm running 93 octane trying to use only good gas stations...car is N/A with just bolt-ons. Stock timing before the KS problems, and will stay that way if I'm successful with the resistor trick. I should be okay with out having a working KS? Car has never given me a problem till the code 34

roel03
04-28-2009, 06:47 PM
Use a 1m OHM resistor. If that doesn't work, which it should, use a 250k ohm resistor.