986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - bad idle following battery disconnect/reconnect

Steve Tinker · 03-20-2012, 01:03 AM

Try this...
Disconnect the battery again.
Touch the positive (+) cable to the chassis for a few second to discharge any capacitance in the system.
Reconnect the battery and switch on the ignition - but do not start the engine - leave ignition on for at least one minute.
Switch off ignition for at least 10 seconds.
Restart engine.
It may take several miles and about 3 - 4 heat cycles of the engine temperature to completely reconfigure the system.....

03-20-2012, 01:03 AM	#2
Steve Tinker Registered User Join Date: Dec 2008 Location: Queensland, Australia Posts: 1,522	Try this... Disconnect the battery again. Touch the positive (+) cable to the chassis for a few second to discharge any capacitance in the system. Reconnect the battery and switch on the ignition - but do not start the engine - leave ignition on for at least one minute. Switch off ignition for at least 10 seconds. Restart engine. It may take several miles and about 3 - 4 heat cycles of the engine temperature to completely reconfigure the system..... __________________ 2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley. 2001 MV Agusta F4.