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I have had my 9n for about a year, every since I've had it, if it's cold outside and im starting the car up for the first time and I tap the acceleratir, the revs bounce and the car judders. If I pull away straight away it bounces as in driving and then stalls and the battery light comes on.
This causes no problems I was just curious.
I have recently changed battery and spark plugs.
Thanks

What engine do you have?

I would be tempted to change the coil packs if you havent changed those recently

Also clean and calibrate the throttle body

Sorry! I have the 1.2 55 engine. I'll look at the coil packs and throttle body on the weekend.