I replaced the stock battery on my 3 today with the factory rated Duralast Gold from Autozone. After replacement, I immediately took the car out for a drive. The idle was extreemely low after the car warmed up, eventually getting so low the engine stalled whenever I would take my foot off the gas (car has the automatic transmission).
I got home using the 2-foot method (a little scary). When I pulled into my garage, I shifted to neutral and left the car idling. It didnt stall when in neutral. The tachometer hung around 200-300rpm. After about 30 seconds, it seemed to reset itself to ~650rpm, and stayed smooth. I shifted to park, drive, and reverse and the idle held around 650.
Was the ecu relearning some things since the battery was out? Its my wife's car, who is not a great driver to begin with, so I don't want to turn her lose with something that might stall while shes driving.
Any info on this is appreciated.
I got home using the 2-foot method (a little scary). When I pulled into my garage, I shifted to neutral and left the car idling. It didnt stall when in neutral. The tachometer hung around 200-300rpm. After about 30 seconds, it seemed to reset itself to ~650rpm, and stayed smooth. I shifted to park, drive, and reverse and the idle held around 650.
Was the ecu relearning some things since the battery was out? Its my wife's car, who is not a great driver to begin with, so I don't want to turn her lose with something that might stall while shes driving.
Any info on this is appreciated.
