Rough idle with 91h tune. - Mustang Evolution

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Old 10-02-2013, 07:04 AM   #1
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Rough idle with 91h tune.

I was sitting in traffic this morning and I notice the tach gauge was a little jumpy. Anyone have that? I've been running it for about 1 1/2 weeks.
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Old 10-02-2013, 07:53 AM   #2
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hmm....
I only get a rough idle when I first load the tune. is it revving low? or just a little jumpy?
because when I startup my car it'll be a little jumpy, but that's only because it's warming up.
everything goes back to normal in 30 seconds.
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Old 10-02-2013, 07:58 AM   #3
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hmm.... I only get a rough idle when I first load the tune. is it revving low? or just a little jumpy? because when I startup my car it'll be a little jumpy, but that's only because it's warming up. everything goes back to normal in 30 seconds.
+1
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Old 10-02-2013, 10:23 AM   #4
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hmm....
I only get a rough idle when I first load the tune. is it revving low? or just a little jumpy?
because when I startup my car it'll be a little jumpy, but that's only because it's warming up.
everything goes back to normal in 30 seconds.
Just a little jumpy.
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Old 10-02-2013, 10:28 AM   #5
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Just a little jumpy.
has the engine fully warmed up at this point?
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Old 10-02-2013, 11:36 AM   #6
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has the engine fully warmed up at this point?
Yep.
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Old 10-02-2013, 11:45 AM   #7
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I just let it run a little bit in park and it seems OK, maybe just a minor 100rpm flux. I guess I never noticed it before.
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Old 10-02-2013, 04:35 PM   #8
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I had a small problem like this before. All I did was redo my tune and asked them to set my idle at 50+ Rpms and it fixed it.
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Old 10-02-2013, 04:52 PM   #9
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I just let it run a little bit in park and it seems OK, maybe just a minor 100rpm flux. I guess I never noticed it before.
If that's all your experiencing, then keep driving the car for a few more days. A 100rpm jump is very small. The idle should settle down after you build up more KAM memory.

If you continue to have this issue, try the "idle relearn" process. This will wipe your KAM memory clean so you can start fresh. Starting from scratch will smooth the idle quicker, after enough city miles.

Hope this helps!

Shane
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Old 10-02-2013, 04:57 PM   #10
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If that's all your experiencing, then keep driving the car for a few more days. A 100rpm jump is very small. The idle should settle down after you build up more KAM memory.

If you continue to have this issue, try the "idle relearn" process. This will wipe your KAM memory clean so you can start fresh. Starting from scratch will smooth the idle quicker, after enough city miles.

Hope this helps!

Shane
Thank you Shane, if it continues to happen I'll do the idle relearn.
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