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
Mustang Forums
2015+ S550 Mustangs
5.0L Coyote V8 Engine Modification/Discussion
Problems with surging and driveability - datalog attached
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="markmurfie" data-source="post: 15620040" data-attributes="member: 177031"><p>Make sure you are viewing them on the same scale. using datazap.me it looks like your banks 1 and 2 are doing nearly the same thing. I see no problem there.[ATTACH=full]91825[/ATTACH]</p><p></p><p>If I had to guess I would say your throttle body is the cause of your surging. your MAF is following your throttle and the throttle is opening and closing not very smoothly. Pedal position, which is usually smooth is following throttle angle like its in open loop. Usually it's only in open loop at WOT. A tune can change this or a physical problem could cause the throttle body to use open loop through the closed loop intervention prevention safety feature. I assume a dealer would flash a stock tune on the car to undo any previous modification. That kinda leaves a physical problem with the throttle body or wiring. That's my best guess. [ATTACH=full]91829[/ATTACH]</p></blockquote><p></p>
[QUOTE="markmurfie, post: 15620040, member: 177031"] Make sure you are viewing them on the same scale. using datazap.me it looks like your banks 1 and 2 are doing nearly the same thing. I see no problem there.[ATTACH=full]91825[/ATTACH] If I had to guess I would say your throttle body is the cause of your surging. your MAF is following your throttle and the throttle is opening and closing not very smoothly. Pedal position, which is usually smooth is following throttle angle like its in open loop. Usually it's only in open loop at WOT. A tune can change this or a physical problem could cause the throttle body to use open loop through the closed loop intervention prevention safety feature. I assume a dealer would flash a stock tune on the car to undo any previous modification. That kinda leaves a physical problem with the throttle body or wiring. That's my best guess. [ATTACH=full]91829[/ATTACH] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Mustang Forums
2015+ S550 Mustangs
5.0L Coyote V8 Engine Modification/Discussion
Problems with surging and driveability - datalog attached
Top