PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

LS1 Tune

Thread Tools
 
Search this Thread
 
Old Apr 30, 2005 | 02:34 AM
  #1  
JGA's Avatar
JGA
Thread Starter
TECH Enthusiast
 
Joined: Feb 2005
Posts: 563
Likes: 0
Default LS1 Tune

Hi

My 1998 Z28 is running a little rough. I plan to take it into a shop, but know nothing about the LS1. What sort of items should be done/checked to an LS1 when doing a tuneup? Plugs, plug wires, O2 sensors, etc?

Thanks JA

Last edited by JGA; Apr 30, 2005 at 02:42 AM.
Reply
Old Apr 30, 2005 | 10:58 AM
  #2  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

How exactly is it running (symptoms)? How long have you had it, how long has it been running rough, is the engine light on, do you have any mods?
Reply
Old Apr 30, 2005 | 11:24 AM
  #3  
JGA's Avatar
JGA
Thread Starter
TECH Enthusiast
 
Joined: Feb 2005
Posts: 563
Likes: 0
Default How is it running

Originally Posted by blkZ28spt
How exactly is it running (symptoms)? How long have you had it, how long has it been running rough, is the engine light on, do you have any mods?
Hi
I have owned the car for 4 months. K&N induction, Borla catback, Hypertech 180 stat, B&M trany cooler and aluminum drive shaft. The car has about 45k miles on it. It's an A4 car. The engine compression is perfect (as per the report from the dealer I purchased the car from).

It runs pretty well, but at WOT just about when it shifts, it misses a bit/runs rough. I also seems to be a little low on power for overall performance. The idle is also a little rough.

I will soon install MAC headers/cat Y pipe and a that time I will replace the plugs and install new high temp wires and boot protectors. It was also recommended to replace the rear O2 sensore with Bosh units. However, I wasn't planning on replacing the O2 sensor unless I get engine codes after the headers are installed.

The car does not have any engine codes at this time, nor does it have any excessive smoke from the exaust. After the headers go on I was planning on getting a Vinci hand held tuner for a power tune, but I do not have it yet. There is no one locally that can custom tune an LS1.

Just woundering what sort of things I should be looking at on the LS1 when I do the header install.

Thanks JA
Reply
Old Apr 30, 2005 | 11:36 AM
  #4  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

Originally Posted by JGA
Hi It was also recommended to replace the rear O2 sensore with Bosh units. However, I wasn't planning on replacing the O2 sensor unless I get engine codes after the headers are installed.
All the rear O2's do is verify that there are functioning cats. If there is no engine light the rear O2's are fine.

It wouldn't be a bad idea to replace the front O2's with a pair designated for the rear banks on a C5 corvette. Bosch part number for them is 13111 at autozone.
Reply
Old Apr 30, 2005 | 01:34 PM
  #5  
JGA's Avatar
JGA
Thread Starter
TECH Enthusiast
 
Joined: Feb 2005
Posts: 563
Likes: 0
Default

Hi

Thanks for the advice.

JA
Reply




All times are GMT -5. The time now is 10:49 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