Categorized | BMW Repair Manual


BMW – Fuel Trim (Fuel Adaption) Diagnostics

Posted on 25 December 2013 by admin

Download The ECU modifies the injection rate under two areas of engine operation. These areas are the idle or low load mid range engine operation and operation under a normal to higher load when at higher engine speeds. These altered injection rates are known as Long Term Fuel Trim (LTFT) Additive and Short Term Fuel Trim (STFT) Multiplicative. See figure 1.

Long Term Fuel Trim (LTFT)

This is the control of Injection Pulse Time Open (ti) (also called Injection Pulse Width) over the entire range of engine operation. It is primarily calculated at idle or low load mid range engine operation and is averaged over time.

Related Search :


Tag Posts :

, , , ,



Comments are closed.

Aurepman.com
Free PDF Auto Repair Manuals
www.aurepman.com

Autoserman.com
Auto Service Manual | PDF Free Download
www.autoserman.com

Okemanual.com
Service & Repair Manual Free Download
www.okemanual.com

Carrepman.com
Free Online Car Repair Manuals Download
www.carrepman.com

Carserman.com
Car Service Manuals Free Download PDF
www.carserman.com

Autorepmagz.com
Auto Repair Magazines Free Download & Review
www.autorepmagz.com

Autosermagz.com
Auto Service Magazines | Free PDF Download & Review
www.autosermagz.com

Ndarzone.com
Ndarzone.com | Article, New and Science
www.ndarzone.com

Blog.ndarzone.com
Blog.ndarzone.com | News & Entertainment Online Portal
blog.ndarzone.com

Auto.ndarzone.com
Automotive News and Review
auto.ndarzone.com

Bwthemes.ndarzone.com
BW Themes | Free Blogger & Wordpress Themes
bwthemes.ndarzone.com

suggest listing
PR5 Free Web Directory - Submit URL >>
www.addurl.nu

Ads by Iskandar