headers and O2 sensor

DemonGT · 03-10-2001, 11:05 AM

when you guys installed your long tube headers how did you get your stock O2 sensor to reach...

------------------
'91 GT,91K,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back

Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires

86GT · 03-10-2001, 02:05 PM

I've heard of a harness that plugs into the o2 sensors and it extends the wires for you. But I'm told its rather expensive. The simplest and cheapest way is to splice longer wires into the existing o2 sensor wires (do this one at a time to avoid mixing up which one is which). Use good wire and make sure to wrap all your connections and tie them so they don't contact the exhaust. I've had that work for over 2 years now. Hope that helps.

rtz · 03-10-2001, 02:17 PM

Go here: http://www.autozone.com/Catalog/catalog.html and scroll down and click on "Emission Control (Engine Management)". They have Bosch oxygen sensor's that have a 13" wire. They also have some with a 16 1/2" wire on them. They say the stock ones are 8 1/2".

[This message has been edited by rtz (edited 03-10-2001).]

Stang_ROTY · 03-10-2001, 05:04 PM

You can pass emissions tests with long tube headers?? 5.0 Magazine had a article on long tubes v. shorties and they said they weren't street legal on poluttion controlled vehicles.

DemonGT · 03-10-2001, 11:00 PM

Stang ROTY where i live there arnt emissions

------------------
'91 GT,91K,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back

Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires

yello95gt · 03-11-2001, 12:17 AM

The stock wires will work. You have to pull them out of the plastic loom and route the individually over the back of the trans. It will work, I have done it twice on two other cars I have owned

03-11-2001, 05:26 AM

Yup,I did the same thing with my O2 sensors just as yello95gt did,no need to be splicing wires...

------------------
Paxton Blown 87GT

AJSTANG · 03-11-2001, 12:01 PM

I purchased an extension harness from Interactive Systems & Technologies, Canton GA ph. 770-720-1259 part #OH-8676-F. $34.95.

------------------
'93 GT Conv.
13.35 @ 104.8 mph

gramsch · 03-12-2001, 06:24 AM

Get the extension harness! I feel it is the best way to go. Splicing can lead to problems. With the extensions you have room to route your wires where you want and helps to clean up the underside of you car

------------------
Michael "Deke" Gramsch
87'GT - Oxford White (soon to be vermillion red)
MSD 6AL ignition and coil, 65mm FMS throttle body, K&N filter, Accel Pro Billet Distributor, Fluidyne Radiator and Blue Hose Kit, Long Tube Headers, Off Road H-Pipe, Flowmaster American Thunder Exhaust, MAC Shifter, Weld Draglites, 190 LPH Fuel Pump, ADJ Fuel Pressure Regulator & Fuel Pressure Gauge, and some other odds & ends.

03-10-2001, 11:05 AM	#1
DemonGT Registered Member Join Date: Aug 2000 Location: Wisconsin Posts: 879	headers and O2 sensor when you guys installed your long tube headers how did you get your stock O2 sensor to reach... ------------------ '91 GT,91K,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires

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03-10-2001, 02:05 PM	#2
86GT Sniffed too much n20 Join Date: Oct 1998 Location: Ont, Canada Posts: 1,018	I've heard of a harness that plugs into the o2 sensors and it extends the wires for you. But I'm told its rather expensive. The simplest and cheapest way is to splice longer wires into the existing o2 sensor wires (do this one at a time to avoid mixing up which one is which). Use good wire and make sure to wrap all your connections and tie them so they don't contact the exhaust. I've had that work for over 2 years now. Hope that helps.

03-10-2001, 02:17 PM	#3
rtz Registered Member Join Date: Feb 2001 Location: Edmond, OK Posts: 180	Go here: http://www.autozone.com/Catalog/catalog.html and scroll down and click on "Emission Control (Engine Management)". They have Bosch oxygen sensor's that have a 13" wire. They also have some with a 16 1/2" wire on them. They say the stock ones are 8 1/2". [This message has been edited by rtz (edited 03-10-2001).]

03-10-2001, 05:04 PM	#4
Stang_ROTY Registered Member Join Date: Feb 2001 Location: Berkshire County - Massachusetts Posts: 735	You can pass emissions tests with long tube headers?? 5.0 Magazine had a article on long tubes v. shorties and they said they weren't street legal on poluttion controlled vehicles.

03-10-2001, 11:00 PM	#5
DemonGT Registered Member Join Date: Aug 2000 Location: Wisconsin Posts: 879	Stang ROTY where i live there arnt emissions ------------------ '91 GT,91K,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires

03-11-2001, 12:17 AM	#6
yello95gt Registered Member Join Date: Jun 2000 Location: jackson,Ms 39208 Posts: 20	The stock wires will work. You have to pull them out of the plastic loom and route the individually over the back of the trans. It will work, I have done it twice on two other cars I have owned

03-11-2001, 05:26 AM	#7
Mustanguy Guest Posts: n/a	Yup,I did the same thing with my O2 sensors just as yello95gt did,no need to be splicing wires... ------------------ Paxton Blown 87GT

03-11-2001, 12:01 PM	#8
AJSTANG Registered Member Join Date: Nov 2000 Location: Maryland Posts: 123	I purchased an extension harness from Interactive Systems & Technologies, Canton GA ph. 770-720-1259 part #OH-8676-F. $34.95. ------------------ '93 GT Conv. 13.35 @ 104.8 mph

03-12-2001, 06:24 AM	#9
gramsch Registered Member Join Date: Apr 2000 Location: Little Rock, Arkansas Posts: 64	Get the extension harness! I feel it is the best way to go. Splicing can lead to problems. With the extensions you have room to route your wires where you want and helps to clean up the underside of you car ------------------ Michael "Deke" Gramsch 87'GT - Oxford White (soon to be vermillion red) MSD 6AL ignition and coil, 65mm FMS throttle body, K&N filter, Accel Pro Billet Distributor, Fluidyne Radiator and Blue Hose Kit, Long Tube Headers, Off Road H-Pipe, Flowmaster American Thunder Exhaust, MAC Shifter, Weld Draglites, 190 LPH Fuel Pump, ADJ Fuel Pressure Regulator & Fuel Pressure Gauge, and some other odds & ends.