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Where in 2014 can you find the 1UZ-FE Knock Sensor Sub-Harness?

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Old 07-03-14, 06:28 PM   #1
CLRH2O
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Question Where in 2014 can you find the 1UZ-FE Knock Sensor Sub-Harness?

No seriously... since Sewell Toyota no longer sells this:

Knock Sensor Harness:
822119-50010 (Toyota Part Number)

(and you can find the "Discontinued" part here):
---
http://lexus.sewellparts.com/accesso...1992/4929.html

I've got Code 52 (Left Bank) and Code 55 (Right Bank) on my 1993 SC400 and with the bogging (limp mode / no over 2000rpm action), and bucking at cruising speed/throttle - I'm thinking it's pretty obvious my 21 year old sensors and wiring "sub"-harness need a replacement.


But - this wiring loom/harness/thing is apparently the hardest single part in the universe to find for sale now!

Anyone have a suggestion? It's Thursday July 3rd 2014 - and I need one stat
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Last edited by CLRH2O; 07-03-14 at 06:32 PM..
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Old 07-03-14, 06:38 PM   #2
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Also, why would a 98 - 00 harness *not* work? I found one of those and the seller assures me if I buy it it wont work on my 1993... did Toyota change the knock sensors on the later engines? Aaarg, it sure does looks the same to me :O
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Old 07-03-14, 07:02 PM   #3
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I don't know the answer, but I would start by looking up the knock sensors themselves and see if the part numbers changed, and more importantly, if the connectors look different.

I fought with knock sensor trips for awhile, but -- knock on wood -- they seem to have subsided with other fixes. Mine was only #55, though, so yours sounds much more likely to be the wiring.
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'94 SC400 Factory Frankenstein: '00 RX300 steering wheel, '93-96 GS300 speedo/tach needles, '98-02 GS4xx wheels, Prius lug nuts (eco friendly!) ... LS400 calipers denied wheel clearance for take-off.
Performance: Alternative BFI (BeeFI?), A/T Solenoid Bypass, M2/Manzo axleback exhaust (awaiting mid-pipe resonator delete), 2-Tone Driver's Seat ("performance" as measured by the butt test).
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Old 07-03-14, 08:08 PM   #4
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Agreed - I HAVE to find this cable... and at some point everyone else will too.

At one point I'd just though, screw it, I'll wire my own up - but after (searching extensively) the general consensus here (and on Lextreme) seems to be a resounding "don't do it" due to incorrect impedance and other electrical gremlinz interfering with the signal these guy put out - and more importantly - what the ECU reads in and interprets it to be. Apparently this is a very dodgy area to go off trying to roll your own with.

There has got to be a source out there somewhere still - CL - lets brain power this one and locate it!

I'll let you know if I can find anything, believe that.
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Old 07-03-14, 08:55 PM   #5
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Good luck! I hope to not need to tap into your research, but I'll be following along with interest just in case. I saved the thread, as well, on the off chance I run across anything.
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Old 07-09-14, 05:32 PM   #6
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Quote:
Originally Posted by CLRH2O View Post
No seriously... since Sewell Toyota no longer sells this:

Knock Sensor Harness:
822119-50010 (Toyota Part Number)

(and you can find the "Discontinued" part here):
---
http://lexus.sewellparts.com/accesso...1992/4929.html

I've got Code 52 (Left Bank) and Code 55 (Right Bank) on my 1993 SC400 and with the bogging (limp mode / no over 2000rpm action), and bucking at cruising speed/throttle - I'm thinking it's pretty obvious my 21 year old sensors and wiring "sub"-harness need a replacement.


But - this wiring loom/harness/thing is apparently the hardest single part in the universe to find for sale now!

Anyone have a suggestion? It's Thursday July 3rd 2014 - and I need one stat
Do you have the p/n for the 98 SC400? Thats what I have and I cannot get a call back from THE dealership here. I say THE because I'm on Oahu and there isnt much to choose from! Each time I call the dealer, i get.."shoot I cant find it, let me call you back"
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Old 07-09-14, 05:48 PM   #7
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just got a call back oddly enough.... I was told there isn't a "harness" for the 98?? he said they sell the plastic connector (sensor end) and the 2-wire pigtail separately. Each are less than $10, so I went for it.

Doubt this info helps you CLRH2O, but thought I'd throw it out there
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Old 07-09-14, 07:40 PM   #8
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Pulling yours out for inspection is the way I'd go about it if it were me and I suspected that as the issue. I there doesn't seem to be an issue that's blatantly obvious and it's not soaked in oil, I'd look at the ecu being the culprit. Making your own would surely be simple. Just replicate what Toyota did. You know how many people that have hacked together swap wiring and the car works fine? Lots. Lots. If I can splice in ten feet of shielded wire to a knock/o2/trigger sensors and run an IS ecu in parallel with a jzx100 ecu and have it function perfectly, I have no doubt a foot or two in your scenario will be fine
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Old 07-29-14, 02:08 PM   #9
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I'm definitely picking up what you're putting down VRANK

If it turns out that I'm simply unable to source the parts, that'll end up being the scenario.

And SouthDwn77 - are these parts you're talking about for the tips (that connect to the sensors themselves)

http://www.toyotapart.com/90980-11166.html

And / or this?
http://www.lexuspartsnow.com/parts/l...219-50010.html


I'm also wondering if this might be of use - if for nothing other than an already loomed wire set that could be snipped and re-purposed with the appropriate tips:

Amazon.com: APDTY 028143 Engine Knock Sensor Wiring Harness Pigtail Connector Assembly For 1992-2001 Lexus ES300 / 1999-2003 Lexus RX300 / 1995-2005 Toyota Avalon / 1991-2006 Toyota Camry / 2001-2007 Toyota Highlander / 1998-2003 Toyota Sienna (Replaces 82219-07010): Automotive Amazon.com: APDTY 028143 Engine Knock Sensor Wiring Harness Pigtail Connector Assembly For 1992-2001 Lexus ES300 / 1999-2003 Lexus RX300 / 1995-2005 Toyota Avalon / 1991-2006 Toyota Camry / 2001-2007 Toyota Highlander / 1998-2003 Toyota Sienna (Replaces 82219-07010): Automotive
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Old 07-29-14, 02:08 PM
 
 
 
 
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