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1999 lexus sc 400 problems can I splice a new oem 02 sensor to existing wires?

My #1 02 sensor is bad can I splice in a new denso sensor to the existing wires?

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They make universal o2 sensors that come with connectors. they are also less expensive than direct fit.

Posted on Jan 23, 2015

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Hello your question is a bit short on information, shooting in the dark here I am guessing you have the old 02 sensor out? If the connector
got damaged you can go right to NAPA and get factory type connector to replace the damaged one with. As a last resort you can carefully match each wire then reconnect them by soldering each one. Make sure you use small enough shrink tube and also slide it on the wire before you solder each wire so you can cover each one after its been connected and cooled.
Good luck and be safe.
Mark / aka RagenRat

Posted on May 12, 2014


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Posted on Jan 02, 2017

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I changed the bank 1 sensor 1 and i still get the code p0135. i replaced it with denso. do i have to get the oem sensor?

The Brand of O2 Sensor is not the issue

The issue is you not knowing how to diagnose
the vehicles problems & how to use the codes you get

While codes sometimes indicate a part name & that
part may have failed,that is not usually the case

Need to Google the code & learn about it

It would seem you had a failed oxygen sensor
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Hello i have a 2001 pontica montana. I keep getting a code 420. I have change the cat twice and the plugs as well. What else it there to do?

Spark plugs or 02 sensors? The rear 02 sensor is what sets this code. The numbers it produces, how fast or how slow they come is how it tells the ECM that the catalytic converter is getting worn out. The sensors it self can be bad and cause the same code as a bad converter. Just a note bosch 02 sensors are not very good, I have replace 2 and 3 in a row that where new. Go with OEM or denso.

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I have a major loss of power< car will drive but takes forever to get going, sounds very muffeled almost like its clogged or something, someone told me it could be the cat or the o2 sensor. this...

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How do i reset brake ware indicator on my 1999 lexus ls400

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Once the light has come on, the appropriate sensor (front or rear) must be replaced to return functionality.
Factory brake pads usually come with new sensors. Aftermarkets do not, and often have no provisions for attaching them either.

Alternately, you can bypass the brake level sensors by splicing the two wires for the sensor together. You will no longer have brake level warnings if you do this however.

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I bought online on Amazo for $48 each. The OEM is Denso. So I bought universal denso and I had to splice it. The part number is the same ecxept that is universal. So when you search, look for Denso.

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i just checked the ford's..3 liter,12 valve....i see car has four o2's and all identical with heater inside.. i also found the lexus....i tried attaching a screen shot of each wiring..but size limits prohibit...i looked at wire colors...they don't agree ford to ford and lexus to lexus nor cross breed colors...on lexus are four pins..
pin 1 is heater
pin 2 is battery pos (looks like other end of heater filament)
pin 3 is sensor out
pin 4 is ground (possibly sensor)

on ford...
pin 1 is battery pos (looks like other end of heater filament)
pin 2 is heater
pin 3 is sensor out
pin 4 is sensor out

hope this helps...

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