PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Emissions stumper

Thread Tools
 
Search this Thread
 
Old Aug 19, 2006 | 04:13 PM
  #1  
squirrelishere's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: May 2006
Posts: 166
Likes: 0
From: Cicero, IL
Default Emissions stumper

Okay, first my o2 sensor went out giving me the p0130(I believe that's what it was). Fixed that and SES went out for like 2 days and returned. Of course emissions wouldn't pass cuz of that. Next went to get it read, it was o2 codes again. Had them deleted and codes went away for like 4 days. Of course, as I was going to emissions to hopefully pass, code came back. This time code of P0420. That being the cat. Had that code deleted so it wouldn't read and setting set to Ready. Went to go do emissions and it failed cuz the SES won't light up from the MIL(whatever that is). I'm not sure what it is. It stumped Horist and all. I have a 1998 z28. Maybe it's cuz I got a car from that year, but he used HP Tuners to delete the codes and set my stuff to Ready. Does anyone here know what it could be?
Reply
Old Aug 20, 2006 | 03:11 AM
  #2  
squirrelishere's Avatar
Thread Starter
On The Tree
iTrader: (6)
 
Joined: May 2006
Posts: 166
Likes: 0
From: Cicero, IL
Default

Anyone? TTT......
Reply
Old Aug 20, 2006 | 10:52 AM
  #3  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

Don't understand this description really. But I've been
wondering when the powers that be, would catch wise
to tuning and push the latex glove in deeper.

On my car codes for no-longer-present gear that are
set to "no error reported" don't prevent the checks
from moving to "Ready" status. Not that '98s couldn't
have some special clownery embedded.

Have to go through the list and make sure any of the
codes that are bugging you, got the right kind of "off"
(easy enough to get the wrong pick off the chooser
etc., or have some other thing holding off the test
from readiness that you didn't see the last time; a
half dozen O2 related codes, and failing one means
the rest may not be reported 'cuz the test aborts,
etc.).

Or maybe it's just a '98.
Reply




All times are GMT -5. The time now is 05:21 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