Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
The Terminator
Engine/Tuning
AFRs are erratic and drifting rich
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="silver_cobra_01" data-source="post: 16519774" data-attributes="member: 172972"><p>Didn't end up having much time to play with it today but I was able to get two logs. Both logs are the same exact tune, the car just sat for about two hours after the first was taken. The first log is shorter and unfortunately didn't include a cold start but it does show the stabilized idle and AFR. At the end of the first log it was running around 13.9-14.2 or so. The second log is longer and did technically include a cold start since it ran off the startup cold fuel table. At the end of the second log it was running around 12.8-13.1 or so. The actual AFR obviously varies but hopefully the data will do a better job explaining the issue. The best way I can describe it is that the car just drops a point or so in AFR after sitting and starting back up until it reaches 11-11.5 AFR. I will try again in an hour or so to see if this happens again like it did last night.</p><p></p><p>Tbh I'm not sure where exactly to go from here but keep looking over the tune. Maybe there is some parameter I didn't notice that created this affect, but I did more or less follow the same process I used when I tuned the car a couple years ago. </p><p></p><p>If anyone has any suggestions please feel free to let me know. Thank you.</p><p></p><p>Edit: log2 was too large to upload so I've split it roughly in half</p></blockquote><p></p>
[QUOTE="silver_cobra_01, post: 16519774, member: 172972"] Didn't end up having much time to play with it today but I was able to get two logs. Both logs are the same exact tune, the car just sat for about two hours after the first was taken. The first log is shorter and unfortunately didn't include a cold start but it does show the stabilized idle and AFR. At the end of the first log it was running around 13.9-14.2 or so. The second log is longer and did technically include a cold start since it ran off the startup cold fuel table. At the end of the second log it was running around 12.8-13.1 or so. The actual AFR obviously varies but hopefully the data will do a better job explaining the issue. The best way I can describe it is that the car just drops a point or so in AFR after sitting and starting back up until it reaches 11-11.5 AFR. I will try again in an hour or so to see if this happens again like it did last night. Tbh I'm not sure where exactly to go from here but keep looking over the tune. Maybe there is some parameter I didn't notice that created this affect, but I did more or less follow the same process I used when I tuned the car a couple years ago. If anyone has any suggestions please feel free to let me know. Thank you. Edit: log2 was too large to upload so I've split it roughly in half [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Engine/Tuning
AFRs are erratic and drifting rich
Top