Question about 1985 Pontiac Firebird

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Wire diagram 85 transam

Can any one tell me what color the o2 sensor wire should be from the ecu to the o2 the info that i got from all data and chiltons doesnt match the connections on my car ...

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I am not sure but my Haynes Manual shows a purple wire. Chapter 10 section 21.

Posted on Mar 12, 2009

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What color wire coming off the engine harness grey or brown connects to the blue signal wire on the 02 sensor which color is the signal wire to the computer


posted 3 times now and forget to say FRONT SENSOR>
right, not the Rear 02 sensor....?
and still no engine stated.!
nor country, (USA calif, usa FED, or canada)
strike three you are out.
sorry.
there are 3 engines,
based on all 3 engine schematics, my wild guess
is 7AFE engine. (the brown wire clue) 1,8L
4AFE (1.6L)
or 1ZZFE engine, DOHC 1.8L

Feb 28, 2016 | 1997 Geo Prizm

1 Answer

Diagrams wiring free


A Corolla in snake skins..

my guess is you found out , all 02 use different color wires.
yes, that is true. why not name the new sensor makers name.
BOSCH?
but the harness colors are unique. on the car.
so when is this.???? 1.6L SOHC, or the DOHC?

here is a prizm link page, it shows how to get all this. data.

http://www.fixkick.com/PRIZM.html


no all things i life are free. sorry.

Rules of road. 02
there are 4 pins
the 2 heater pins are not polarized, can be swapped.
in fact BOSCH , is 2 black wires, here.
but what are the cars harness colors ok,, i spin 1.6L SOHC
for you, i log into alldata.com and look.
some cars have 2 kinds, Calif, or Federal, and if in Canada that too!

The 4AFE USA, 1995
a day late and a dollar short.
ok the 4AFE shows ONLY a 2 pin 02>so must not be 4A engine.
the 7A shows. 4pin. per below.
toyota color codes, here. (im iffy on toy codes)
BR -ground. O2 Cell minus pin 4 (brown)?
B-R 12vd to heater pin 2. (black & red stripe)
B , ox2 CELL plus, pin 1 (black?)
L-B , heater switched ground from ECU. pin1 (light blue?)

7afe

bd1099ee-c02c-4aba-966e-1764a93d43b9.jpg

Apr 21, 2014 | 1995 Geo Prizm

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

2 Answers

2001 Cadillac Deville oxygen sensor wiring diagram


The wiring diagram shows the wiring color code, Power rating and connector plug used. The wiring diagram explains the vehicle's electrical connections with color code. It's a bit complicated to understand.

6d70bec4-a83f-4733-a114-8a73592152a7.jpg

Apr 07, 2013 | 2001 Cadillac DeVille

1 Answer

O2 wiring diagram


The pink and black-white wires are for the heater, the other two are for the sensor circuit.
If you can tell me which sensor I can get the colors for you.

Aug 14, 2012 | 1996 Cadillac Eldorado

1 Answer

Wiring diagram for 2004 F150


I am sorry but fixya has no wiring diagrams, they are copyrighted by Ford and not shared freely on the Internet. Ford publishes a booklet of wiring diagrams you can buy a used one on eBay many times or find one HERE

Jul 17, 2012 | Ford F-150 Cars & Trucks

2 Answers

02 wireing on ecu 1999 isuzu trooper


We do not have these diagrams, the info is located in the factory repair manual and that is copyrighted and not free to share because of the copyright. You can "rent" access to the manuals and all tech inf here: alldatadiy.com

Feb 22, 2012 | 1999 Isuzu Trooper

1 Answer

(o2 sensor indicator light cancel switch.) I need to fix this. I changed my o2 sensor and the light hasn't gone off, and it runs the same weather or not the sensor is pluged in or not.


could have wiring damaged need to check if signal from O2 sensor is getting to engine ECU.
can see this in data display using tech2 or scanner O2 sensor reading would be around 450mv all the time indicating open circuit(this is a default reading used by ECU)
or with multi meter back probe ECU connector O2 signal wire to see what reading if any getting to ECU.

Jul 19, 2009 | Isuzu Trooper Cars & Trucks

2 Answers

Missfire on number 3 coil on 2001 S type Jaguar 3.0 V6 Sport


Check the igniter module.
I assume you have a ecu code telling you #3 coil is missfiring ?
If so also check the crankshaft angle sensor .
If it is not an error code do a compression test and check the injector.
Hope this helps
Regards
George

Jul 08, 2009 | 2001 Jaguar S-Type

1 Answer

O2 signal wire


with an ohm meter you can determine which one is the signal wire by the voltage fluctuating from .800 mv to .150mv

Jul 19, 2008 | 1998 Dodge Caravan

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