Question about 2004 Hyundai Elantra

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Replacing 2004 Hyundia Elantra O2 Sensor

I have a 2004 Hyundia Elantra. The original sensor has 5 wires (Blue, black, white, yellow and gray). Bosch universal replacement sensor (before catalytic converter) has 4 wires (black for signal; white (2) for heater and gray for ground).
Can this work and if so how....

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Had the same problem You need to go to dealer and order an O2 sensor with California emissions. The wire will be longer and fit into the prong

Posted on May 08, 2009

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1 Answer

97 talon aftermarket o2 sensor


i would go buy a factory o2 sensor cause the aftermarket ones dont work that well anyway and the factory one should have 4 wires and of the same color

Mar 28, 2014 | 1997 Eagle Talon

1 Answer

I am replaceing my existing o2 sensor with a bosch oe smartlink universal sensor. the existing wires are brown/yellow, gray, pink/black. and green. how do I wire the new sensor to the old wires?


you need the factory color code and the bosch color codes.
then wire per that. there is no other way. (universal)
that is the penalty for not using a PNP sensors, plug and play.
do not mess up,wiring the 1 heater to the CELL + wire
risks blowing out the senor or ECU. a $500 error.

here a list. 89-98 list.
first the bosch list ,with comments. my 91 , just and example.
http://www.fixkick.com/oxy-sensor/bosch-pinout.JPG

all bosch unversals sensors have a paper inside,
and is very hard to read and understand.
my guess is it fails german translations.....
no biggy
your car is a 4 wire sensor.
on my cars 96 , the heater wires are non polar so are much easier. lets do them first.
the bosch color is.white, on my car its blk.
so i wired, bosch white to my cars black. x2
bosch gray is sensor ground, (special) wired to cars white wire.
every year, suzuki changes wire colors, not reading the FSM is FAIL.
and last my Bosch CELL+ pin is black and wires to my cars blue.
O2 are like battery CELLS, and are Polar.
Suzuki changed the blue color like a drunk sailor spends money.
a royal PITA. that is. LOL !

the for sure solution is to look it up in the FSM.
for all wire, find your blue, and win !
http://www.scantool.net/software/alldata-diy-1-month-subscription.html


see the 9 times suzuki changes here, prior to 2004

http://www.fixkick.com/sensors/OxyGen_sensor_help.html

did they change in 2006, ? Ill never know, as Suzuki is bust here.
nor will i pop for $15 to find out. When my Suz, dies, that be the end.
btw 2: the sensor colors on any suzuki are "NCA". FSM drawings.
no color assigned.
the colors mentioned are HARNESS colors in the sensor side.
suzuki uses many different brands sensors and colors, or reserves the right to do so at anytime. Bosch, NGK, Delphi, etc.
tricky huh? thus the pages , linked.
back in 1996 they should have set ISO standards but did not....

i hope that is not confusing.
but in a nut shell.
1: grab bosch sheet,
2: grab the car schematic, for ECU. (fsm, or alldata, or mitchells)
there is your answer.
no man as the blue wire color on all car or all suzuki;'s
not yet. tell my yours and ill update my records.

Aug 17, 2013 | 2006 Suzuki Forenza

1 Answer

Bosch 02 sensor downstream on a 1996 Jeep grand cherokee 4.0 motor. I have no wire harness to match the colors to. bosch has two white, one grey and one black. Jeep has orange/green,black/brown,black/blue...


The two white are the heater
The black the ground
The gray the O2 Sensor output,
you back probe to check Voltage
& Switching Times

The vehicle wiring harness does not have to match
the sensor, BUT -- you need to have the same
connector on the sensor

If you have a universal cut & splice, you have junk,
and we given the wrong part

Get a Bosch or NGK, OEM sensor & just
plug it in

Jun 23, 2011 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Can you tell me what colors the two IAT wires are on a 2004 Toyota Tacoma 2.7L as they go into the mass air flow sensor?


The wires going into the MAF are as follows:

White/Red = Ignition voltage

Blue/Black = E2

Black/White = E2G

Yellow/Green = THA (This is the IAT signal to the PCM)

Gray = VG

Feb 25, 2011 | Toyota Tacoma Cars & Trucks

1 Answer

07 Silverado 1500 classic 5.3L engine Replaced O2 sensor with Bosch unit What's the pin-out match? Bosch Sensor Wiring White Black Grey Black OEM Sensor Wiring Black Blue White White


my truck(2007 silverado 5.3) died at red light got it started back and had knocking noise in engine and like not running on all 8 cylinders only 55000 mile barely made it back home, had to keep foot on gas and brake to keep it running,will not start unless i mash accelerator pedal,PLEASE HELP, I JUST BOUGHT THIS TRUCK

Oct 07, 2010 | 2007 Chevrolet Silverado 1500 2WD

1 Answer

Just got a Bosch Oxygen sensor for my 2007 Silverado. Check Engine light still on. What is the wire match up ? Part had no instructions. Bosch Sensor wires Black Black Grey White OEM...


If the unit has a polarity plug on it that will just plug in one way, don't worry about the colors. You can verify at the part store that you have the correct O2 sensor. If you do, it can take up to 50 key starts berfore the computer resets itself or you can ask the people at the parts store to reset the light. Most of them do it for free if you buy your parts there. Either way, the light will eventually go out if the O2 sensor was truly the problem. Meanwhile, you cannot pass any state inspections with the light on.

Oct 07, 2010 | 2007 Chevrolet Silverado 1500 2WD

2 Answers

THE WIRING ON THE FAN CLUTCH GOT CUT AND THE WIRES FROM THE TRUCK ARE YL/RD,BLK/RD,GREEN/GRAY,RD/GREY,GREEN THE WIRES FROM THE CLUTCH ARE RD,GREEN,WHITE,ORANGE,BLACK. TRYING TO BE SURE BEFORE I CONNECT...


1) ECM Fan Clutch 1) K160 18BR/OR Park Lockout Solenoid Control Green
1) BR / OR = Brown/Orange unit with Green
2) K900 18DB/DG Sensor Ground 2) Black
2) DB / DG = Dark Blue/Grak Green unit with Black
3) K161 18BR/LB Fan Speed Sensor White
3) BR / LB = Brown/Light Blue unit with White
4) Not Used
4) Not Used
5) F856 18YL/PK 5 Volt Supply Orange
5) YL/PK = Yellow/Pink unit with Orange
6) F504 20GY/PK Fused Ig. Sw. Output Red
6) GY/PK = Gray/Pink unit with Red
With this, you have 5 due color cables unit to the 5 full color cables. Run.

Good luck, and rated this help (and us chat).

Aug 27, 2009 | 2004 Dodge Ram 3500 Truck

1 Answer

O2 sensor wiring diagram


A new 02 sensor will come with new wires and connector. If not get back with me I think there is a repair kit for that problem.

Jun 01, 2009 | 2002 Ford Explorer

1 Answer

Replacing O2 Sensor What color are the original: Wires


black is usually power and if there is a blue its the feedback to the pcm

May 13, 2009 | 2004 Buick LeSabre

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