91 Mustang 5.0
I am getting most of the VE map tuned pretty well, but I am having trouble with the idle.
The car has a TFS-1 cam (221/225@.050 112 lobe sep retarded 4*). It wants to idle the best at about 56kpa at 900RPM with no surge at all, but if I rev it and let off real fast, it wants to surge, and then corrects itself. Same thing happens when Im driving and push the clutch in or come to a stop. I have tried richening it up and leaning it out and it still seems to do it either way, is there a setting I missed or something in the Accel/Decel area?
Off throttle surge...
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If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Racinndrummin
- MegaSquirt Newbie
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- Joined: Fri Jun 23, 2006 5:24 pm
- Location: Kent, Wa
Off throttle surge...
91 mustang 5.0 lx notch MS1/v2.2
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Racinndrummin
- MegaSquirt Newbie
- Posts: 3
- Joined: Fri Jun 23, 2006 5:24 pm
- Location: Kent, Wa
Re: Off throttle surge...
I did a search, but I couldnt find anything.
is there a thread that explains this very well at all
is there a thread that explains this very well at all
91 mustang 5.0 lx notch MS1/v2.2
Re: Off throttle surge...
What is your timing doing? I noticed on My El-comino that leaving the timing curve flat at and near idle made it much more steady.
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Racinndrummin
- MegaSquirt Newbie
- Posts: 3
- Joined: Fri Jun 23, 2006 5:24 pm
- Location: Kent, Wa
Re: Off throttle surge...
is the MS controlling the IAC motor?
Re: Off throttle surge...
could you post a data-log, also it would be helpfull to know the code version etc.