PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

O2 sims, code, or something like that.

Thread Tools
 
Search this Thread
 
Old Jul 26, 2008 | 05:34 PM
  #1  
AxisOfOil's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2008
Posts: 391
Likes: 0
From: Mesa, AZ
Default O2 sims, code, or something like that.

Okay, I'm getting a code about every third time I start up my car.
It's for an O2 sensor heater circuit malfunctioning, bank 2, sensor 2.

Someone told me this is the O2 sensor behind the cat, which I don't have.

I just got the car, so I'm not sure what exactly has been done to it, but I do not have cats, and there are no sensors plugged into my exhaust, except the forward O2 sensors.

The aforementioned code is the only code being thrown, and it lights up with 2 codes, the second the same as the first, only "pending" instead of actually present.

Any ideas what could be causing this?
Reply
Old Jul 26, 2008 | 05:37 PM
  #2  
2xLS1's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (25)
 
Joined: Nov 2001
Posts: 5,649
Likes: 9
From: Warr Acres, OK
Default

Originally Posted by AxisOfOil

Any ideas what could be causing this?

Originally Posted by AxisOfOil
there are no sensors plugged into my exhaust, except the forward O2 sensors.
.....
Reply
Old Jul 26, 2008 | 05:39 PM
  #3  
AxisOfOil's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2008
Posts: 391
Likes: 0
From: Mesa, AZ
Default

it's only throwing a code for one of the rears, not both.
Reply
Old Jul 26, 2008 | 08:35 PM
  #4  
2xLS1's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (25)
 
Joined: Nov 2001
Posts: 5,649
Likes: 9
From: Warr Acres, OK
Default

You may have O2 sims and one of them went bad.
or
Your tuner may have been drinking and missed turning off one of the codes.
or
You may need to give it more time to set to set the code for the other side.
Reply
Old Jul 27, 2008 | 01:41 AM
  #5  
AxisOfOil's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2008
Posts: 391
Likes: 0
From: Mesa, AZ
Default

thank you.
the code just popped up, i'll give it a few days this time... see what it does.

anyone know of a tuner who'll get rid of the codes somewhere around Kansas City?
as well as EGR and AIR, of course, as long as i'm killing codes for emissions equiptment, may as well scrap it all, right?
Reply
Old Aug 7, 2008 | 02:07 AM
  #6  
AxisOfOil's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2008
Posts: 391
Likes: 0
From: Mesa, AZ
Default

gave it six days and about 1k miles... same single code.

anyone know anyone in the KC area that deletes codes?
Reply
Old Aug 7, 2008 | 08:40 AM
  #7  
wait4me's Avatar
TECH Addict
iTrader: (10)
 
Joined: Feb 2003
Posts: 2,961
Likes: 2
From: warsaw, in
Default

I can send you out a whole different ecm and you keep your original for $160 fully programmed and shipped.
Reply
Old Aug 7, 2008 | 10:33 AM
  #8  
AxisOfOil's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2008
Posts: 391
Likes: 0
From: Mesa, AZ
Default

one that doesn't have the codes and whatnot?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Aug 7, 2008 | 11:03 AM
  #9  
wait4me's Avatar
TECH Addict
iTrader: (10)
 
Joined: Feb 2003
Posts: 2,961
Likes: 2
From: warsaw, in
Default

Yes you should be able to just plug it in and have fun.
Reply
Old Aug 7, 2008 | 08:33 PM
  #10  
AxisOfOil's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2008
Posts: 391
Likes: 0
From: Mesa, AZ
Default

that's a very tempting offer. i may do that if I don't find someone to do it to mine. I think i have a tuned pcm already... and i'm not sure exactly what mods have been done to the car yet, so I don't know if I can go back to a stock tune without losing a lot.
Reply
Old Aug 8, 2008 | 09:46 AM
  #11  
wait4me's Avatar
TECH Addict
iTrader: (10)
 
Joined: Feb 2003
Posts: 2,961
Likes: 2
From: warsaw, in
Default

You can send us your computer also. We ship them back out the same day.
Reply
Old Aug 8, 2008 | 12:05 PM
  #12  
AxisOfOil's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jun 2008
Posts: 391
Likes: 0
From: Mesa, AZ
Default

I'll assume I don't have a tune since the guy that sold it to the dealer i bought it from just told me it doesn't have a h/c package. and that tells me it'd be fine to go with a new one. it's prob about time for one anyways. and i can't afford the downtime of my DD if I were to send it in to someone. mail is slow.

i'll let you know.
Reply




All times are GMT -5. The time now is 07:36 AM.

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