PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

L-Trims average?

Thread Tools
 
Search this Thread
 
Old Feb 6, 2003 | 05:24 PM
  #1  
LS1derfull's Avatar
Thread Starter
TECH Addict
 
Joined: Dec 2001
Posts: 2,298
Likes: 2
From: new england
Default L-Trims average?

Just checked my fuel trims with tech 2 after 2 weeks of driving with Long tube headers and off road Y. My Ltrims were 0% and -3%, but average Ltrims were -7% and -9%. Should i use average for deciding to lean translator base 5%? I am thinking this will bring avg. closer to 0?
TIA
Reply
Old Feb 7, 2003 | 09:30 AM
  #2  
NoGo's Avatar
TECH Addict
20 Year Member
Photogenic
Photoriffic
iTrader: (2)
 
Joined: Jan 2002
Posts: 2,814
Likes: 110
From: Mass
Default Re: L-Trims average?

I don't use the average when determining how much I am going to adjust the LTerms. I just look over at the scanner when I am driving and partially on the throttle to get an idea where they are.
I then romp on it a little bit (no more than 25% throttle) and see where the LTerms are.

I then adjust accordingly.

I don't like using the average feature because some injectors (particularly the SVO's) generate big negative LTerms when you come off the throttle. This throws off the entire average.

Lterms are only important right before you go WOT. You want to make sure that they are ~0 at these points.

Good Luck,
Kevin
Reply
Old Feb 7, 2003 | 04:48 PM
  #3  
LS1derfull's Avatar
Thread Starter
TECH Addict
 
Joined: Dec 2001
Posts: 2,298
Likes: 2
From: new england
Default Re: L-Trims average?

Kevin that makes sense, thank you.
Reply




All times are GMT -5. The time now is 08:25 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