987 Dies in Traffic
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#8
Race Director
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The engine does not crank and then cranks and starts and drives normal?
My WAG is a critical engine sensor and the one that comes to mind is the crankshaft position sensor. It gets hot (the heat is internally generated) and quits working. A few minutes to cool down -- absent any power the failing sensor can't generate the heat that (temporarily) renders it inoperable -- and poof it is alright again.
Sincerely,
Macster.
#11
Race Director
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No 100% sure but probably not. Even though a critical sensor (if this proves to be the case) is not working, emissions are not affected and so no CEL. The engine controller may have logged some Porsche proprietary error code that a tech equipped with a PST2 or PIWIS and the knowhow use one of these tools to its fullest can use to retrieve this Porsche error and thus make the diagnosis.
I note plugs were changed recently. While I doubt all 6 plugs are bad during the plug job this crankshaft position sensor's connector accidently or on purpose disturbed or even disconnected to give the tech more working room, and this connector is not now making a good connection, reliable connection and that is the cause of the problem.
Sincerely,
Macster.
I note plugs were changed recently. While I doubt all 6 plugs are bad during the plug job this crankshaft position sensor's connector accidently or on purpose disturbed or even disconnected to give the tech more working room, and this connector is not now making a good connection, reliable connection and that is the cause of the problem.
Sincerely,
Macster.
#12
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Thanks Macster. You gave me an idea. When programming a new key/actuator, I did ask the tech to check for any codes. There were none. What I discovered is operator errors--missing first and third in my older Porsche just gave me a chug or two warning. This one dies, and when it dies, it requires truning the key to the off position before restarting.
#13
Race Director
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Thanks Macster. You gave me an idea. When programming a new key/actuator, I did ask the tech to check for any codes. There were none. What I discovered is operator errors--missing first and third in my older Porsche just gave me a chug or two warning. This one dies, and when it dies, it requires truning the key to the off position before restarting.
But in your car's case why the engine is dying needs to be sorted out, unless it is just sloppy clutch work on your part. You are not alone: I've killed my Boxster a few times from just not paying attention to my driving.
Sincerely,
Macster.