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knite75 · 12-01-2016, 04:46 PM

Hi Rok986,

My Boxster did exact same thing last week. Engine suddenly lost complete power. I asked Scotty to divert power from aux and life support system, but that didn't help either. All instrument panel lighted up like Christmas. Got knocked out of warp speed, but Still had momentum, cruised over to the side of road. Couldn't start up again. It would crank, but nothing after that. No code. No check engine light.

Various possible culprits:

(1) Battery
(2) Alternator
(3) Crankshaft Sensor
(4) Fuel Pump/Relay

Luckily, I found a Porsche mechanic that's only a few miles away (thanks to Yelp). He drove out and tested the battery. It's good. Tested the alternator. it's good too. He tested fuel pressure. It turned out, there's non. The fuel pump was the culprit.

Bought a fuel pump, popped it in (it's directly under the battery). Started up beautifully.

Needless to say, I didn't do any Black Friday Shopping this year. Local Porsche Parts department took a few franklins from that ordeal.

12-01-2016, 04:46 PM	#9
knite75 Registered User Join Date: Nov 2016 Posts: 4	Hi Rok986, My Boxster did exact same thing last week. Engine suddenly lost complete power. I asked Scotty to divert power from aux and life support system, but that didn't help either. All instrument panel lighted up like Christmas. Got knocked out of warp speed, but Still had momentum, cruised over to the side of road. Couldn't start up again. It would crank, but nothing after that. No code. No check engine light. Various possible culprits: (1) Battery (2) Alternator (3) Crankshaft Sensor (4) Fuel Pump/Relay Luckily, I found a Porsche mechanic that's only a few miles away (thanks to Yelp). He drove out and tested the battery. It's good. Tested the alternator. it's good too. He tested fuel pressure. It turned out, there's non. The fuel pump was the culprit. Bought a fuel pump, popped it in (it's directly under the battery). Started up beautifully. Needless to say, I didn't do any Black Friday Shopping this year. Local Porsche Parts department took a few franklins from that ordeal. Last edited by knite75; 12-01-2016 at 04:53 PM.