Ford Expedition The Expedition provides the feel of a full size truck with the seating of a large SUV.

OBD2 Cylinder Acceleration Values

Thread Tools
 
Search this Thread
 
Old Oct 17, 2020 | 06:46 PM
  #1  
awdavis01's Avatar
Thread Starter
|
Junior Member
Joined: Oct 2020
Posts: 1
Default OBD2 Cylinder Acceleration Values

2011 Expedition XLT / 5.4L / 220k

Does anyone have any experience tracking/interpreting the Ford acceleration value per cylinder (Cyl_1_accl, Cyl_2_accl, etc.) calculated in the PCM and measured via the crank sensor?

>>> What is a normal range of values returned when looking at any particular cylinder?

>>> Should the data from all eight cylinders be roughly in parallel with each other on a graph, or will each cylinder generate a completely different trace line on a graph (as shown below)

This is a screenshot of a recent trace I made. The bottom line represent what gear was in effect as the trace developed.

What I have might be perfectly normal, I just don't know what 'normal' looks like.

Thanks!
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nmra1965
Other Professional Racing
0
Oct 29, 2019 01:42 PM
skip1930
Ford Expedition
5
Jan 26, 2013 05:19 PM
Beastly350
New Member Area
2
Sep 28, 2007 11:18 AM




All times are GMT -5. The time now is 09:48 AM.