mhub91 Posted May 24, 2014 Report Share Posted May 24, 2014 Just finished replacing my knock sensor due to a "code 34, Knock Sensor circuit". (Please refer to link: http://www.ka24development.com/ecu_codes.html ) on how to retrieve codes. I took a look at the KS and low-and-behold .... The KS had actually broken at the connector... weird! I took a look at the sensor and it appeared to be a cheapo aftermarket and looked like it was partially melted!Anyway, I called O'reillys and the said a new sensor was $122.99! WHAT THE F*CK!? I then decided to get crafty and cross reference the sensor to other Nissan engines... I came up with this info: Ka24de knock sensor part number: 2206030P00 Cross references.... 2000-2004 Nissan Xterra 2.4L 4cyl 1991-2001 Nissan Sentra 1.6L 4cyl 1991-2001 Nissan Sentra 2.0L 4cyl 1995-2002 Nissan Maxima 3.0L V6 1995-1998 Nissan 200 SX/SE-R 2.0L 4cyl 1991-1998 Nissan 240 SX 2.4L 4cyl 1990-1996 Nissan 300 ZX 3.0L V6 1991-1993 Nissan NX 2000 2.0L 4cyl 1990-2000 Nissan Pathfinder 3.0L V6 1990-2000 Nissan Pathfinder 3.3L V6 1993-2001 Nissan Altima 2.4L 4cyl 1998-2004 Nissan Frontier 2.4L 4cyl 1990-1993 Nissan D21 PickUp 3.0L V6 1993-1998 Nissan Quest 3.0L V6 1994-1996 Nissan PickUp 3.0L V6 1990-1996 Nissan Hardbody PickUp 3.0L V6 1995-1998 Nissan 200SX SE-R 1991-1998 Nissan 240SX 1990 Nissan 300ZX 3.0 V6 VG30DE 1990 Nissan 300ZX Turbo 1991-1996 Nissan 300ZX 1993-2001 Nissan Altima 1990-1994 Nissan D21 3.0 V6 1998 Nissan Frontier 1999-2000 Nissan Frontier 2.4 L4 1992-1994 Nissan Maxima SE 1995-1999 Nissan Maxima 1991-1993 Nissan NX 2.0 L4 1990-2000 Nissan Pathfinder 1995 Nissan Pickup 3.0 V6 1996 Nissan Pickup 1996 Nissan Pickup 3.0 V6 1993-1998 Nissan Quest 1991-1994 Nissan Sentra SE-R 1998-2001 Nissan Sentra SE 2000 Nissan Xterra 2.4 L4 1993-1998 Mercury Villager 1991-1996 Infiniti G20 1999-2002 Infiniti G20 1996-1999 Infiniti I30 1993-1997 Infiniti J30 1990-1994 Infiniti Q45 1996-2000 Infiniti Q45 This is a long list to go through, but to make it short.... GA16DE, SR20DE (FWD), KA24DE, VG30DE(T), VH45DE all share the same knock sensor regardless of FWD or RWD EXCEPT SR20DET AND KA24E (SINGLE CAM) WILL NOT WORK. I HIGHLY RECOMMEND USING THE FWD SR20DE SENSOR FOUND IN THE G20 / SENTRA SE-R!! It is extremely easy to remove, only requiring a 12MM wrench.... To remove the "new" sensor, be careful as the can break them... lay under the car and look on the back side of the block, under the intake manifold, just above the CV axle... can be seen here: Remove the sensor, and CAREFULLY inspect. It should be clean, un-cracked and corrosion free. Check to see if there is any "cracked, peeling plastic." If you have any of these concerns, do not use it.. on to the next car. Example of a nice, used knock sensor: Remove you're KA24DE sensor and now install the new SR20DE sensor. Clear codes (refer to link above) and test drive. Re-check codes. 1 Quote Link to comment
thisismatt Posted May 24, 2014 Report Share Posted May 24, 2014 How is it free? Pocketing it (stealing it) at a salvage yard? Quote Link to comment
mhub91 Posted May 24, 2014 Author Report Share Posted May 24, 2014 I'll leave that to you're discretion. My sharing of info is free. I don't condone stealing. 1 Quote Link to comment
nismo dr Posted May 25, 2014 Report Share Posted May 25, 2014 those barely make it out of warranty as it is, doubt you will get 6 months out of a used up one Quote Link to comment
mhub91 Posted May 25, 2014 Author Report Share Posted May 25, 2014 those barely make it out of warranty as it is, doubt you will get 6 months out of a used up one ain't that the truth... holy hell! i'm actually finding out that Nissan's had a huge issue with their knock sensors... Quote Link to comment
Uber Deaf One Posted May 25, 2014 Report Share Posted May 25, 2014 ain't that the truth... holy hell! i'm actually finding out that Nissan's had a huge issue with their knock sensors... Yup. Went through this with my KA... spent a lot of time trying to make code 34 go away. We've narrowed it down to either the ecu, or the actual wire going from the knock sensor to the ECU. Quote Link to comment
mhub91 Posted May 26, 2014 Author Report Share Posted May 26, 2014 Yup. Went through this with my KA... spent a lot of time trying to make code 34 go away. We've narrowed it down to either the ecu, or the actual wire going from the knock sensor to the ECU. So, I've been reading that at the Nissan dealership back in the day they would also replace the KS sub harness assy. when knock sensor was replaced. They like to be brittle! That little 11" pigtail is around $50 from what I read... after all you can just throw an ohmmeter across that little harness and be sure there is continuity between the connectors. I can almost guarantee the ECU wouldn't malfunction and only cause code 34. There would be additional, strange issues going on. Have you replaced the knock sensor? And if so, did you use one of those cheap $30 ones from eBay? If so, I've heard those are total junk. They can also be damaged in shipping! If you haven't replaced the KS, do so. It's real easy. Requires a 10MM, 12MM, 12" extension, 3/8" ratchet, tape and a metal coat hanger. lol. Quote Link to comment
nismo dr Posted May 26, 2014 Report Share Posted May 26, 2014 ^ yeah, what he said, in my many years replacing sensors (2 last week alone), have never seen a ecm related knock sensor failure. Have only had a couple that ever needed the harness Quote Link to comment
nismo dr Posted May 26, 2014 Report Share Posted May 26, 2014 One thing Nissan did, not that they knew they had a problem with them or anything, even on obd II cars the knock sensor code p0325 won't turn the check engine light on. People normally only replace them when they fail emission testing for the code Quote Link to comment
mhub91 Posted May 26, 2014 Author Report Share Posted May 26, 2014 ... won't turn the check engine light on. Correct. But it does decrease power quite a bit with that code active ... which is a possibility why people say KA's are so slow lol. I think dual cams a re perfectly fine, honestly. Quote Link to comment
Uber Deaf One Posted June 8, 2014 Report Share Posted June 8, 2014 So, I've been reading that at the Nissan dealership back in the day they would also replace the KS sub harness assy. when knock sensor was replaced. They like to be brittle! That little 11" pigtail is around $50 from what I read... after all you can just throw an ohmmeter across that little harness and be sure there is continuity between the connectors. I can almost guarantee the ECU wouldn't malfunction and only cause code 34. There would be additional, strange issues going on. Have you replaced the knock sensor? And if so, did you use one of those cheap $30 ones from eBay? If so, I've heard those are total junk. They can also be damaged in shipping! If you haven't replaced the KS, do so. It's real easy. Requires a 10MM, 12MM, 12" extension, 3/8" ratchet, tape and a metal coat hanger. lol. We tried two brand new knock sensors and replaced the knock sensor harness. :hmm: Even tried wrapping it in a towel and running a ground to the block, which is how it's sitting right now. Correct. But it does decrease power quite a bit with that code active ... which is a possibility why people say KA's are so slow lol. I think dual cams a re perfectly fine, honestly. Do you know for sure? Here is a graph of my KA dyno with the ECU showing code 34 and speed sensor code. There's no way a pretty much stock KA will make that kind of power if it's pulling timing... that is to the wheels by the way. Quote Link to comment
mhub91 Posted June 9, 2014 Author Report Share Posted June 9, 2014 I do not know for sure, no. But reading in the FSM how the sensor functions it would seem that it would retard timing to lower the chance of detonation, although i could definitely be wrong... I have been before. lol. Quote Link to comment
ggzilla Posted June 9, 2014 Report Share Posted June 9, 2014 Some work by advancing timing. Quote Link to comment
king bee66 Posted June 17, 2014 Report Share Posted June 17, 2014 my 97 altima ks code loves to turn on, but its always been caused by some other failure. both my MAF and o2 senor set off the knock sensor, and then went away as soon as i replaced the problem sensors. as a side note, ive replaced a knock sensor on a fwd ka24de before and it is not an easy task, it is located in one of the hardest to reach places in the car, most shops will want to take off the manifolds to get to it. it can be reached from under the car, but it is garenteed to take awhile and cause a hand cramp Quote Link to comment
thisismatt Posted August 17, 2014 Report Share Posted August 17, 2014 Saw these for cheap if anyone needed one: http://www.amazon.com/2206030P00-Frontier-Pathfinder-Villager-Infiniti/dp/B002Q4617O/ref=sr_1_13?m=A2L77EE7U53NWQ&s=merchant&ie=UTF8&qid=1408233626&sr=1-13&keywords=d21 Quote Link to comment
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