need help swapping exhaust 02 senser wiring problem

S

slickvic

New Member

Mar 9, 2007

2

0

1

Mar 9, 2007

#1

• Mar 9, 2007

• #1

i'm really in a stumped. on my 85 fox with a 5.0 i'm replacing the stock exhaust
with a true dual exhaust. the problem is the o2 sensor on the stock exhaust only has one. the headers has two one on each side i only see one connector for the o2 sensor. i don't know what to do. where do i connect the other o2 sensor?
does anyone have a wiring diagram for the computor.

thanks slickvic...

 

z2o_what

Member

Mar 31, 2005

309

1

19

princeton, WV

Mar 10, 2007

#2

• Mar 10, 2007

• #2

hell, id just run 1 o2 sensor and block the other hole off.

 

tbovee

Member

May 22, 2006

129

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17

Fredericksburg Va

Mar 10, 2007

#3

• Mar 10, 2007

• #3

Here's a couple of wiring diagrams and some over all good info. Check the connector on the 02 sensor harness. You may need to just replace that one harness and add another 02 but, I'm not sure if the computer will pick up the second sensor?
Being carb'd I would prob go with the one sensor and plug the other fitting like mentioned above.
http://www.veryuseful.com/mustang/tech/engine/

 

S

slickvic

New Member

Mar 9, 2007

2

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1

Mar 10, 2007

#4

• Mar 10, 2007

• #4

THANKS GUYS. WELL TOMORROW SUNDAY I'LL BE INSTALLING MY NEW EXHAUST..
THANKS.. SLICKVIC..

 

jrichker

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Dublin GA

Mar 11, 2007

#5

• Mar 11, 2007

• #5

Put a plug in one of the bungs for the O2 sensors. Your 85 computer will only read one O2 sensor.

AutoZone wiring diagrams

http://www.autozone.com/servlet/UiB..._us/0900823d/80/16/71/3c/0900823d8016713c.jsp for 79-88 model Mustangs

http://www.autozone.com/servlet/UiB..._us/0900823d/80/19/59/5a/0900823d8019595a.jsp for 89-93 model Mustangs

http://www.autozone.com/servlet/UiB..._us/0900823d/80/1d/db/3c/0900823d801ddb3c.jsp for 94-98 model Mustangs