O2 sensors
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
O2 sensors
following some of the posts regarding headers, i've decided to get some from Melrose...looks like a nice system...no air, no cats...son in law says a local vette "guru" can eliminate the o2 sensors...I was going to get new ones with the new exhaust...for a 85 ...anybody know anything about doing this???...
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
You only have one and all you need is a heated version so it doesn't drop out of operation when the headers cool off
Depends what engine the "guru " is talking about.
It is common to eliminate the O2 sensors behind the cats on later (OBDII ) engines which have 4 sensors
not the one up front used for your main fuel control.
It is common to eliminate the O2 sensors behind the cats on later (OBDII ) engines which have 4 sensors
not the one up front used for your main fuel control.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Heed vetteoz's advice and make sure you get a heated O2 sensor. This is not the stock configuration, so you'll have to add some wiring and a relay to put power on the O2 sensor when the ignition is turned on.
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
you guys know so much....thanks again....my car thanks you....I ll post a pic someday when I figure out how...
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
Last edited by cumbercr; Oct 23, 2013 at 05:09 PM.
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Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
Check www.casperelectronics.com for a heated O2 kit. It's pretty simple to install. Part# 103025
Drifting
Joined: May 2013
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From: Reno Nevada
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
There's only one sensor and it is on the drivers side y pipe. By the way, I tried to get away without a heated sensor on my 85. But I had trouble keeping the ECM in closed loop at idle.
Melting Slicks
Joined: Nov 2005
Posts: 2,736
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From: WAY UPSTATE NY
If you are going to use Melrose long tubes they come with an O2 bung in each collector. For switched power for a heated O2 you can tap into the brown wire on the wiper motor...
Melting Slicks
Joined: Mar 2008
Posts: 2,141
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From: Santa Maria, CA
Instructor
Joined: Sep 2003
Posts: 179
Likes: 0
From: Las VEgas NV
recent owner of a 1994 Z07 with 48,000 miles. Starting to replaces all hoses, ect. Lookinf att also replacing O2 sensors. ANy real reason to replace the 1 sensore after the CAT since it really doesnt talk to the PCM (Ive been told or read somewhere)?
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
Paul
