Electronic Engine Management - Fuelly Forums

Click here to see important news regarding the aCar App

Thread Tools Display Modes
Old 02-26-2007, 07:01 PM   #1
Supporting Member
cfg83's Avatar
Join Date: Sep 2006
Posts: 1,779
Country: United States
Electronic Engine Management

Hello -

I like this article because it has concise explanations of the different sensors that the car's ECU/PCM is listening to :

Electronic Engine Management, Part 1
26 February 2007

I like this unintentional nugget of info :
... A MAP-sensed car with a new exhaust may run lean enough to actually drop power, because the ECU doesn't know that there's the extra airflow. All it knows is that there's a certain manifold vacuum at a certain rpm with a certain inlet air temp ...
Hmmmmmmm ....


Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? https://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 02-26-2007, 08:04 PM   #2
Registered Member
GasSavers_Red's Avatar
Join Date: Nov 2006
Posts: 513
Country: United States
Send a message via MSN to GasSavers_Red
Yep, couple that with a reasonably high flow intake and you be in a mildly lean condition most of the time. When you are cruising your 02 sensors would be able to compensate some, but not totally. The Jeeps ECU is a good example. Its too dumb to compensate for some "power mods"
GasSavers_Red is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
More SMS Requests zbret Fuelly Web Support and Community News 16 02-03-2011 12:09 AM
Incorrect Milage Calcuatlion PatM Fuelly Web Support and Community News 4 07-17-2009 07:21 PM
Missing Fuelup jmonty Fuelly Web Support and Community News 3 05-27-2009 04:10 AM
Organize FE results by user/top performance? Smitty Fuelly Web Support and Community News 3 08-26-2008 03:46 AM
"active" aero grille slats on 06 civic concept MetroMPG General Fuel Topics 21 01-03-2006 12:02 PM

» Fuelly iOS Apps
No Threads to Display.
Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 03:56 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.