Porsche Cayman 2.7, Seal Grey, 2007.
Hi I'm baffled by a misfire and wondered if anyone might have advice for me. I've replaced the original Moll battery on my '07 Cayman 2.7 with a Silverline Bosch 74Ah ~ 750A which was listed at Europarts as correct fitment for my car. The car fired up and ran better than ever for about 30 miles and then suddenly developed a very noticeable misfire with the engine warning light and "take to workshop" dash display illuminated. The car has not long been serviced with all coil packs and sparkplugs replaced and apart from slow cranking was running well. Is it just coincidence this has happened after the new and more powerful battery has been fitted, or have I caused damage? Any advice would gratefully received.