Tuning MAF with wideband
Thread Starter
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Tuning MAF with wideband Just got done tuning the VE table in speed density mode using a wideband. Came out great. Tomorrow I plan on tuning the MAF using the wideband as well but have a question. Right now LTFT learning is off, closed loop is disabled, as is DFCO and PE.
Do I need to reenable PE to tune the MAF? I don't feel comfortable going WOT with PE disabled and the plan was several pulls in 3rd from 1100rpm to redline to get the MAF/% error. What about closed loop and DFCO?
Thanks
Do I need to reenable PE to tune the MAF? I don't feel comfortable going WOT with PE disabled and the plan was several pulls in 3rd from 1100rpm to redline to get the MAF/% error. What about closed loop and DFCO?
Thanks
Thread Starter
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
According to that link, you leave DFCO and LTFT learning off but it doesn't specifically mention PE. I think I'll enable it so I don't blow up the motor at WOT.
Thread Starter
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
When going WOT the pcm will use the richer value of either the PE table or the Commanded Fuel when in Open Loop (ECT vs. Map- Stock OS) or (RPM vs. MAP- Custom OS). If you plan accordingly there is no need to fear anything.
We did disabled the PE when tuning the VE, The main reason for it is that we wanted to tune the whole VE table. When loging with PE enable you will not hit any of the cells lower than 90 kpa at higher than 4000rpms. We only did this for 2 drives after we got the lower part of the VE nailed down. Did we need to do this? probably not but in the interest of been thorough we did and I did the same with my car.
