PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

How to test if a wideband sensor needs to be replaced?

Thread Tools
 
Search this Thread
 
Old Oct 20, 2006 | 12:38 PM
  #1  
2000 Tran Zam's Avatar
Thread Starter
TECH Addict
iTrader: (2)
 
Joined: Jul 2004
Posts: 2,333
Likes: 0
From: Ahwatukee, Az
Default How to test if a wideband sensor needs to be replaced?

I spoke to Ricky yesterday from NX express, and he mentioned to use a volt meter on the orange and yellow wires on the sensor.

Well I got under the car, and the part from the sensor only shows a yellow and red wire.

There is a yellow and orange wire, but those are running from from the head unit of the wideband system, not the sensor.

Also, where exactl do I put the volt meter things? I dont see any open wire, do I just put it on the insulated/colored wire?

TIA.
Reply
Old Oct 21, 2006 | 06:49 AM
  #2  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

putting it on the insulated wire will show no voltage. Youll have to rig some way to jumper off or tap the wire.
Reply
Old Oct 21, 2006 | 07:25 AM
  #3  
ls1psycho's Avatar
On The Tree
iTrader: (7)
 
Joined: Mar 2006
Posts: 131
Likes: 0
Default

i usually stick a needle through the wire and then alligator clip the needle.
Reply
Old Oct 21, 2006 | 09:50 AM
  #4  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Is the output erratic? I usually just open up the graphs in HPT and watch the readings that way. If the swings are tight and controlled, it's fine...if they swing really far to either side erratically, it needs to go.
Reply
Old Oct 21, 2006 | 10:10 AM
  #5  
slow's Avatar
TECH Senior Member
20 Year Member
iTrader: (7)
 
Joined: Dec 2001
Posts: 6,150
Likes: 7
From: Orlando
Default

Bosch or NTK sensor ?

NTK's are accurate until they die, and no longer work, so no worry about them becoming bad.

Bosch sensors can drift, and can easily be unaccurate over time, especially when running leaded fuel.

Ryan
Reply
Old Oct 21, 2006 | 10:38 AM
  #6  
2000 Tran Zam's Avatar
Thread Starter
TECH Addict
iTrader: (2)
 
Joined: Jul 2004
Posts: 2,333
Likes: 0
From: Ahwatukee, Az
Default

I think its a bosch sensor, not sure how to tell though.

Its a single wideband sensor, I'll see if I can get some pics, maybe that would help.
Reply




All times are GMT -5. The time now is 10:15 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE