PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Runs like ass help

Old Aug 18, 2007 | 12:52 PM
  #1  
Dragkid1917's Avatar
Thread Starter
9 Second Club
iTrader: (2)
 
Joined: Jul 2007
Posts: 874
Likes: 0
From: new Jersey
Default Runs like *** help

I just put full exaust on my car and deleted all the codes, exept the egr stays on no matter what. The car runs horribly, it backfires at low rpm when under a load (over drive going from 50-70) and when u whack it it stumbles like cccccrazy. it didnt do what when i first installed it but i think its cuz i never really opened it up.
Reply
Old Aug 18, 2007 | 07:51 PM
  #2  
Eurospec2's Avatar
FormerVendor
iTrader: (2)
 
Joined: May 2007
Posts: 668
Likes: 0
From: Jacksonville Florida
Default

what do you mean you deleted the codes but the egr keeps popping,did you just clear the codes or permanently tune them out?

Could very well be you have your 02 sensors crossed, check them out. Also a common thing would be exhaust leaks close to the 02 sensors.
Reply
Old Aug 19, 2007 | 12:37 PM
  #3  
Dragkid1917's Avatar
Thread Starter
9 Second Club
iTrader: (2)
 
Joined: Jul 2007
Posts: 874
Likes: 0
From: new Jersey
Default

i deleted them i didnt tune them out, but they dont pop up for a while when i just delete them. I think its because my 02 sims are telling the computer everything is ok when its not, but that exaust leak is a very good though becaust it does leak between the header and Y pipe, i bought the heavy duty clamps but i need to get the car way up to bend them around the pipe and clamp em together again
Reply
Old Aug 19, 2007 | 05:53 PM
  #4  
Shallow Bay's Avatar
TECH Resident
iTrader: (3)
 
Joined: Jul 2005
Posts: 878
Likes: 1
From: Twin Cities, MN
Default

First, make sure that all of the spark plug wires are fully seated on the spark plugs. Did you remove the spark plugs during the LT install? If not, I would remove each spark plug and make sure that they are not cracked.
Reply
Old Aug 20, 2007 | 11:00 AM
  #5  
Dragkid1917's Avatar
Thread Starter
9 Second Club
iTrader: (2)
 
Joined: Jul 2007
Posts: 874
Likes: 0
From: new Jersey
Default

i actually just did check the front plug, it looks like its runin a little hot. Im gunna go over the boots again to be sure, but i figured if a boot was off it would throw a code sayin so.
Reply
Old Aug 20, 2007 | 11:54 AM
  #6  
Frost's Avatar
FormerVendor
iTrader: (45)
 
Joined: Jul 2005
Posts: 5,913
Likes: 2
From: Richmond VA
Default

you don't have sims hooked up to your front O2s do you? Ther eis no need for sims if you have the back O2s removed and their DTCs wiped out...
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 12:47 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE