PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

PLEASE HELP newbie tune MS4 LS1

Thread Tools
 
Search this Thread
 
Old Feb 26, 2007 | 04:28 PM
  #1  
808ws6's Avatar
Thread Starter
Staging Lane
iTrader: (6)
 
Joined: Nov 2006
Posts: 98
Likes: 0
Default PLEASE HELP newbie tune MS4 LS1

Aloha everyone!

Finally got done with my "small" project this weekend.

Tore the engine down basically to a shortblock.

Installed:
-PAtriot LS6 CNC heads w/ Extreme Dual Springs
-GM MLS headgaskets
-TSP MS4 cam
-TSP Hardened 7.400 pushrods
-LS7 lifters
-Fast 90 intake
-Holley 90 TB
-FAST rails
-NASTY Performance Install kit
-MSD wires
-Pacesetter Race headers
-PAcesetter ORY
-Powerbond Underdrive Pulley

I basically did very few minor adjustments.
-adjusted throttle blade and reset TPS
-Raised warm engine base idle to 950 rpm.
-INcreased Main VE table by 5%

I am using EFI Live V2. Totally new to this, I do however have a very good understanding about EFI and what not.

My current concerns:

1-Cold start it barely idles (would like to get it to start better) (idles better when hot)
2-Hot Re-start it initially starts but stalls out. If I crack the throttle open a bit, it will start much better and then I just need to feather the throttle to get it to take the steadier 950 idle.
3-Part Throttle hiccup/hesitation. (If I let it idle for a bit then BLIP the throttle, I can feel/hear a slight hesitation then a vroom/rev)
4-Smells rich at idle (Engine warm), kinda like a carbureted car where your shirt smells like gas. Can I tune it so it does not smell that bad? ( I know the cats are not there, but they weren't there when it was stock)

I really do not know where to start. I didn;t want to start changing parameters till I get a real good understanding at what I am changing.

I do have a Innovate LM-1 which I plan to install first chance I get to the muffler shop to install the o2 bung. WHich brings another question-Can I remove one of the Pre O2 sensors temporarily, command Open Loop and install the LM-1 in that bung to avoid adding an additional bung?

I have seen the tutorial on AutoVE tuning. How does that work to help tune my car which by the way is a '98 and not covered in the AutoVe tutorial.

Thanks in advance for any help and suggestions.

I just need to know the first baby steps to get the starts/restart/stumble corrected and I am sure I will pick it up quickly!
Reply




All times are GMT -5. The time now is 02:58 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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