Mode 6 Test Question
Thread Starter
|
Mountain Pass
Joined: May 2004
Posts: 201
Likes: 1
From: El Paso, TX
Mode 6 Test Question
OK I am a little stumped on this one. I have a 2003 F150 SCrew 4wd with the 5.4l motor. I use Forscan to monitor my truck as I drive. The other day it developed a misfire, and according to the mode 6 test there was a 12.26% misfire detected on cylinder 5. I investigated it today and it had a partially broken wire on the COP connector. I replaced the connector as well as the COP and the plug while I was there.
Then I went for a test drive and no misfire was detected and no misfire percentage on cylinder 5. But there is now a 12.26% misfire detected on cylinder 7!
Often times when I start my truck in the morning a single misfire will be detected. I then drive to work and it doesn't detect anymore than that. Between this and the exact same misfire percentage .owing from cylinder to cylinder leads me to believe that maybe the data isn't accurate from Forscan.
Anyone ever experienced something like this? The perfectionist in me wants there to be no misfire or percentage detected at all, but not sure I will ever see that.
Then I went for a test drive and no misfire was detected and no misfire percentage on cylinder 5. But there is now a 12.26% misfire detected on cylinder 7!
Often times when I start my truck in the morning a single misfire will be detected. I then drive to work and it doesn't detect anymore than that. Between this and the exact same misfire percentage .owing from cylinder to cylinder leads me to believe that maybe the data isn't accurate from Forscan.
Anyone ever experienced something like this? The perfectionist in me wants there to be no misfire or percentage detected at all, but not sure I will ever see that.
Thread
Thread Starter
Forum
Replies
Last Post
bloomy63
1999 - 2003 7.3L Power Stroke Diesel
3
Dec 6, 2006 07:08 AM
