How to copy the start interrupter key
12-27-2008, 02:15 PM
#1
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How to copy the start interrupter key
I have one key and one start interrupter key with three contacts on it which I have to put into the dash before I can start. I think it's called the start interrupter, but I am not sure. It gives me 10 seconds to start. Does anyone know how I can a duplicate that thing? I've been searching the forum but cannot find anything.
29/12/08, photo's:
29/12/08, photo's:
Last edited by concor; 12-28-2008 at 01:51 PM.
12-27-2008, 04:37 PM
#3
Chronic Tool Dropper
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Concor--
Your 'start interruptor' is an aftermarket gizmo, so you'll be searching the aftermarket to get a duplicate. There may be a mfr's name on the key, and if you follow the wires from the keyslot to the 'smart box' you'll likely also find a mfr's name and hopefully a serial number so another key can be generated for you.
Some of the 'keys' merely have a resistor and a diode in them, so there's a supervised loop. Opne circuit obviously doesn't work, and shoting the pins together won't work either. Voltage drops need to be just right for it to allow starting.
My independent opinion is that gadget locks like this generally cause more headaches than they ever cure. Most are installed in some way that interrupts the circuit to the starter motor, so someplace there's likely a wire or two cut and spliced to your gadget. Those splices may or may not be permanent, so there's an added opportunity for failure. Meanwhile, there are two popular car-theft methods. First is carjacking, where a thief demands your car after it's already running, or holds you hostage until the car starts and he can drive away. Second has the thief roll up with a flatbed tow rig, and your car is 'repossesed' by an obviously official-looking recovery service. A casual thief might break a window to enter your car and try to hotwire it, and might be deterred by the no-start key gadget. Or he might rip the dash apart to trace the wiring to the smart box, twist a couple wires together there, then hot-wire the ignition switch after breaking the steering lock. If it were my car, I'd find or invent a better device after removing the one you have now. Something that kills the fuel pump a few minutes after starting if a switch isn't set, something like that. Were I trying to invent something, it would flash low oil pressure or something similar to remind me to push on the cruise switch and allow the pump to keep running, something like that.
Good luck!
Your 'start interruptor' is an aftermarket gizmo, so you'll be searching the aftermarket to get a duplicate. There may be a mfr's name on the key, and if you follow the wires from the keyslot to the 'smart box' you'll likely also find a mfr's name and hopefully a serial number so another key can be generated for you.
Some of the 'keys' merely have a resistor and a diode in them, so there's a supervised loop. Opne circuit obviously doesn't work, and shoting the pins together won't work either. Voltage drops need to be just right for it to allow starting.
My independent opinion is that gadget locks like this generally cause more headaches than they ever cure. Most are installed in some way that interrupts the circuit to the starter motor, so someplace there's likely a wire or two cut and spliced to your gadget. Those splices may or may not be permanent, so there's an added opportunity for failure. Meanwhile, there are two popular car-theft methods. First is carjacking, where a thief demands your car after it's already running, or holds you hostage until the car starts and he can drive away. Second has the thief roll up with a flatbed tow rig, and your car is 'repossesed' by an obviously official-looking recovery service. A casual thief might break a window to enter your car and try to hotwire it, and might be deterred by the no-start key gadget. Or he might rip the dash apart to trace the wiring to the smart box, twist a couple wires together there, then hot-wire the ignition switch after breaking the steering lock. If it were my car, I'd find or invent a better device after removing the one you have now. Something that kills the fuel pump a few minutes after starting if a switch isn't set, something like that. Were I trying to invent something, it would flash low oil pressure or something similar to remind me to push on the cruise switch and allow the pump to keep running, something like that.
Good luck!
12-27-2008, 05:25 PM
#4
Nordschleife Master
Concor,
Your avatar looks like it has British plates?
The key you describe sounds like the alarm key I have too - from a Laserline alarm, fitted by Porsche UK dealers to 928's of various vintages at point of sale to make them Thatcham compliant for UK insurance.
My car came with two of them, plus two remotes for remote lock/unlock and disarm.
I'll go take some pics and post them to see if it is the same thing as I think you're describing.
I have the instructions for the alarm somewhere here, and it is possible to order a new key and clone it using your alarm and your existing immobiliser key.
Your avatar looks like it has British plates?
The key you describe sounds like the alarm key I have too - from a Laserline alarm, fitted by Porsche UK dealers to 928's of various vintages at point of sale to make them Thatcham compliant for UK insurance.
My car came with two of them, plus two remotes for remote lock/unlock and disarm.
I'll go take some pics and post them to see if it is the same thing as I think you're describing.
I have the instructions for the alarm somewhere here, and it is possible to order a new key and clone it using your alarm and your existing immobiliser key.
I have one key and one start interrupter key with three contacts on it which I have to put into the dash before I can start. I think it's called the start interrupter, but I am not sure. It gives me 10 seconds to start. Does anyone know how I can a duplicate that thing? I've been searching the forum but cannot find anything.
12-27-2008, 06:06 PM
#5
Nordschleife Master
Is this it?
Mine's a Laserline 975 - but it seems most laserline systems use the same electronic key. They're available from various UK suppliers.. e.g (no affiliation or experience):
http://www.ncs-systems.com/res/403
If it is the correct key, you can re-code multiple keys using your alarm in-car.
Mine's a Laserline 975 - but it seems most laserline systems use the same electronic key. They're available from various UK suppliers.. e.g (no affiliation or experience):
http://www.ncs-systems.com/res/403
If it is the correct key, you can re-code multiple keys using your alarm in-car.
12-28-2008, 01:50 PM
#6
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Aha, so it's 3rd party stuff! I didnt' know that. I just love this forum 
Nearly instant answers on the weirdest questions
@Xlot: Yes it is similar to yours. Looks like they are just drilled into that place, my hole is a bit off compared to yours.
@Dr Bob: Thanks a lot for the detailed answer! Very helpful. I'll try and find the supplier of this gizmo as you so nicely describe it
Here are pictures of it! Sorry for not posting them first, I thought it was standard Porsche and everything knew about it.
Nearly instant answers on the weirdest questions @Xlot: Yes it is similar to yours. Looks like they are just drilled into that place, my hole is a bit off compared to yours.
@Dr Bob: Thanks a lot for the detailed answer! Very helpful. I'll try and find the supplier of this gizmo as you so nicely describe it
Here are pictures of it! Sorry for not posting them first, I thought it was standard Porsche and everything knew about it.
12-29-2008, 12:22 AM
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Conlog stopped trading in the UK in 1997, they were bought out but the company that bought them ceased trading the immobiliser products. You are probably best fitting a newer spec system to the car, thats very old now.
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01-01-2009, 09:31 AM
#8
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@CanAmJohn, thanks for the info man! Really appreciated.
Here's what I'll do. I'll copy the standard key so I have a reserve and I'll put the Conlog thing in my ashtray with a little chain. That way it can't fall out of my pocket And a thief still doesn't know to check the ashtray, unless he reads this forum!
Here's what I'll do. I'll copy the standard key so I have a reserve and I'll put the Conlog thing in my ashtray with a little chain. That way it can't fall out of my pocket
And a thief still doesn't know to check the ashtray, unless he reads this forum!
01-01-2009, 02:08 PM
#9
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I'm not sure what year your car is. I have an alarm system in my 84, which I like very much, but I have really always assumed no thief would want to steal it.
