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-   -   Engine keeps running after ignition key is turned off (http://forums.pelicanparts.com/porsche-911-technical-forum/1022202-engine-keeps-running-after-ignition-key-turned-off.html)

dan512 02-27-2019 12:04 PM
Engine keeps running after ignition key is turned off
 
I have a 1979 SC backdated to a 911R that I bought from Jim Tweet on here. The built post is on Pelican as well.

The engine is pimped out with ITB’s, EFI and an AEM Infinity ECU.

If I turn the ignition key to off, the engine will keep running until I press the brake pedal.

What could cause this? How do I fix it?

Dan

jimtweet 02-27-2019 12:44 PM
Quote:
Originally Posted by dan512 (Post 10371093)
I have a 1979 SC backdated to a 911R that I bought from Jim Tweet on here. The built post is on Pelican as well.

The engine is pimped out with ITB’s, EFI and an AEM Infinity ECU.

If I turn the ignition key to off, the engine will keep running until I press the brake pedal.

What could cause this? How do I fix it?

Dan
Contact Andrew from Rasant, at the time I installed his kit he was not including a alternator relay. It has to do with power back feeding from alternator into the ecu. I believe he has a fix for this now.

rattlsnak 02-27-2019 02:37 PM
Plenty of threads on this. Do a search.. You will need a new or to add a diode.


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