LT1-LT4 Modifications 1993-97 Gen II Small Block V8

o2 wire question

Thread Tools
 
Search this Thread
 
Old Dec 5, 2006 | 09:10 PM
  #1  
LT1 Peligroso's Avatar
Thread Starter
Teching In
 
Joined: Sep 2006
Posts: 34
Likes: 0
Default o2 wire question

On my 94z I had to replace the pass o2 w/a bosch one... if you have done this you know the bosch wire colors are different... well my o2 isn't working so I was wondering if anybody knew which wires go where on there so I can start there... thanks a lot
Reply
Old Dec 5, 2006 | 10:49 PM
  #2  
WhyHelloOfficer's Avatar
12 Second Club
iTrader: (5)
 
Joined: Jul 2006
Posts: 583
Likes: 0
From: Tampa, Fl
Default

Originally Posted by LT1 Peligroso
On my 94z I had to replace the pass o2 w/a bosch one... if you have done this you know the bosch wire colors are different... well my o2 isn't working so I was wondering if anybody knew which wires go where on there so I can start there... thanks a lot
Historically people have had issues with the bosch O2 sensors. Usually they aren't able to read as quickly or as often as the OE sensors and it shows.

Best bet is to replace it with OE AC Delco O2 sensors.

For what its worth, I'm running a set of NGK O2 sensors with my car because they are advertised for being more resistant to the additives and lead in race gas, which is what fouled up my first set. I've been running them for about 3000 miles now and I haven't had any issues. The NGK (actually NTK in the Summit online catalog) O2 sensors plug right in, just make sure to select the correct plug style.
Reply
Old Dec 6, 2006 | 05:30 AM
  #3  
LT1 Peligroso's Avatar
Thread Starter
Teching In
 
Joined: Sep 2006
Posts: 34
Likes: 0
Default

The problem is the Previous owner must have had longtubes on the car at some point b/c the o2 wires were extended but they hacked off the clip/plugin and hardwired it. So when I got the bosch I had to cut off the clip and hardwire it to the wires they left there.... and I'm guessing something isn't right b/c its not reading at all... =(
Reply
Old Dec 6, 2006 | 09:34 AM
  #4  
WhyHelloOfficer's Avatar
12 Second Club
iTrader: (5)
 
Joined: Jul 2006
Posts: 583
Likes: 0
From: Tampa, Fl
Default

Originally Posted by LT1 Peligroso
The problem is the Previous owner must have had longtubes on the car at some point b/c the o2 wires were extended but they hacked off the clip/plugin and hardwired it. So when I got the bosch I had to cut off the clip and hardwire it to the wires they left there.... and I'm guessing something isn't right b/c its not reading at all... =(

That definately isn't right. When the car is cold, follow the O2 wires back up towards the engine and see if there is a plug anywhere. If there isn't a plug at all -- then I'd suggest tracking down some AC Delco O2s where the wires will line up.

Here is a pic from Shoe Box's website (www.shbox.com) shows the wire colors and connector. Hopefully this will help some.

Reply




All times are GMT -5. The time now is 01:05 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE