RPMs acting weird - Mustang Evolution

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Old 07-18-2013, 10:02 AM   #1
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RPMs acting weird

So what would be the reasoning for my RPMs to be acting up? Whenever I'm sitting idle, the needle will sometimes drop completely to 0 RPMs, and yea the car stays running. And when I start going itll either jump up to the correct RPM or be about 1000 RPMs or more behind where it should be reading.

Also, if sitting at idle and I rev up, they'll drop and itll stop at idle then die down and almost shut the car off and the jumps back to idle.

I have a bama tune on so keep that in mind. Never did this before the tune tho
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Old 07-18-2013, 11:17 AM   #2
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Quote:
Originally Posted by 96smoke View Post
So what would be the reasoning for my RPMs to be acting up? Whenever I'm sitting idle, the needle will sometimes drop completely to 0 RPMs, and yea the car stays running. And when I start going itll either jump up to the correct RPM or be about 1000 RPMs or more behind where it should be reading.

Also, if sitting at idle and I rev up, they'll drop and itll stop at idle then die down and almost shut the car off and the jumps back to idle.

I have a bama tune on so keep that in mind. Never did this before the tune tho
This is a very odd issue, however if it doesn't happen on the stock tune then it must be within the idle tables in the tune. We send out thousands of tunes and build them all from the ground up for your PCM code and your mods. They're not just "canned" tunes, they're built custom by our team, so every once in a while it's possible we mess one up! We'll definitely get it straightened out for you, though if this is the case! Give one of our Bama Tuning Specialists a call and they'll work with you to figure out exactly what's going on.

Our Bama Performance tuning specialists are here in the building Monday-Friday from 9AM-5:30PM EST and Saturday 9AM-5:30PM EST

-Dan
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Old 07-21-2013, 12:36 AM   #3
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hmm that's strange. good idea to call AM. How are your coil packs and spark plug wires?
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