surging

Having a bitch of a time figuring out this surging. It happens anytime I am slowly climbing in a higher gear. I have a 2011 Mustang A6 with the Paxton setup. 1 possible scenario: Turning a corner at 20-30ish and the car is probably in 3rd or 4th. I slowly accelerate up to speed and the...

(Sorry in advance for the long post) Here's what it's doing: Marginally rough idle (not terribly bad, but noticeable). Surging when running normal highway speeds. Seems most noticeable in the 1800 to 2600 RPM range. Extreme popping on deceleration. I mean like 4th of July fireworks going off...

so i got back from not driving my daily driver (06 5speed GT) for 4 days, went to turn it over and it just ticked. It threw me a low battery error on my stereo so i changed the battery. It was the first time ive changed it since i bought the car in october of 2013. from what i could see on the...

Hey guys, I've been on the forum for a little while but rarely post so I'm not too familiar with all of this, so I'd like to start off by saying, please excuse me if I posted this in the wrong place. Anyways, I'm having issues with my 03 cobra idling weird and surging. At idle, the RPMs...