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Old 11-02-2008, 11:34 AM   #1
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switch

Quote:
Originally Posted by blue2000s
Yes. You can just disconnect the leads to the switch and short them by running a wire between them. It's actually better for the engine to not press the clutch in while starting anyway so I've got my switch bypassed on all my cars.

Just make sure you don't have the car in gear when you start it.

Okay, I'm going to bypass. If this is not my problem, is there anything else you can think of? I'm running out of ideas. I'm wondering if my immobilizer is shutting me down and I just don't see any damage. Perhaps after sitting so long w/o any battery juice, the system no longer recognizes my key?

sam
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Old 11-02-2008, 11:38 AM   #2
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Quote:
Originally Posted by macyfilms
Okay, I'm going to bypass. If this is not my problem, is there anything else you can think of? I'm running out of ideas. I'm wondering if my immobilizer is shutting me down and I just don't see any damage. Perhaps after sitting so long w/o any battery juice, the system no longer recognizes my key?

sam
Have you tried bypassing the ignition and running power directly to the starter? Easy test with a set of jumper cables.
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Old 11-02-2008, 11:45 AM   #3
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Quote:
Originally Posted by blue2000s
Have you tried bypassing the ignition and running power directly to the starter? Easy test with a set of jumper cables.

I connected the posts at the starter/solenoid and the engine cranked like a champ.

The history:

Battery: replaced AND charged for 24 hours.
Ignition switch: replaced.
Clutch switch: checked, appears to be going in and out and clicking accordingly.
Fuses: all appear good.
Relays: seem okay. switched out relay with same #, still no crank.
Immobilizer: opened box under seat; no obvious sign of any damage of any sort.
Starter: tested, spins fast.
Solenoid/Starter: Cranks engine hard and fast.
Analyzer readout: no problem codes.
Key: appears good; "capsule" inside appears fine.
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Old 11-02-2008, 11:50 AM   #4
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Quote:
Originally Posted by macyfilms
I connected the posts at the starter/solenoid and the engine cranked like a champ.

The history:

Battery: replaced AND charged for 24 hours.
Ignition switch: replaced.
Clutch switch: checked, appears to be going in and out and clicking accordingly.
Fuses: all appear good.
Relays: seem okay. switched out relay with same #, still no crank.
Immobilizer: opened box under seat; no obvious sign of any damage of any sort.
Starter: tested, spins fast.
Solenoid/Starter: Cranks engine hard and fast.
Analyzer readout: no problem codes.
Key: appears good; "capsule" inside appears fine.
Sorry I missed that part. Sure sounds like an immobilizer problem.
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Old 11-02-2008, 11:58 AM   #5
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Bypassing the switch will at least disable your cruise contol. Bypass it to test or use a VOM, if bad replace it.
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Old 11-02-2008, 12:00 PM   #6
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I assume this problem started BEFORE you replaced the ignition switch?
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
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Old 11-02-2008, 12:07 PM   #7
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ign switch

Quote:
Originally Posted by Paul
I assume this problem started BEFORE you replaced the ignition switch?
Yes, the problem started before i replaced the switch. The switch was very sticky and stubborn, so I was hopeful that this was the problem. An fyi for other readers, while Porsche would only sell me the whole assembly for $160, Audi sold me just the switch for $40.

A silly question I imagine, but can the immobilizer be tested? can it be by passed? Or am I stuck going to the dealer on this one?

sam
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Old 11-02-2008, 12:08 PM   #8
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Quote:
Originally Posted by Paul
Bypassing the switch will at least disable your cruise contol. Bypass it to test or use a VOM, if bad replace it.
I never noticed, shows how much I use the cruise control.
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