I have a Porsche 911 Turbo MY2002 and have installed a RESTART9 in it about a year ago. Regarding jump starting, if I ever need it, can I use the factory procedure, which is different from what you have in the manual: Porsche says jump start from the two jump start posts in the engine in the rear (the battery is in the front), the +12 post being directly connected to the alternator, while the mass post is attached directly to the chassis.
Your procedure says remove the +ve cable from the battery and jumpstart to the detached cable, bypassing the battery.
Could I use the Porsche procedure and leave the battery connected to the car or should I always detach the +ve cable from the battery?
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