Really cheap immobiliser trick (unless i'm missing something

For all electrical questions; Alternators including fitment; Light connections/wiring; Instruments; Gauges; MFA; Heater blower (not coolant related) issues etc etc.
Forum rules
Hints, tips and guides for repair and modification - the FAQ section on the main website is worth checking first for information relating to common faults and technical help. Useful posts and guides will be added to the FAQ http://www.sciroccoregister.co.uk/scirocco-faq
Post Reply
Niall
Posts: 255
Joined: Sat Apr 04, 2009 12:42 pm
fill in the right answer: 10
Location: Swansea, South Wales

Really cheap immobiliser trick (unless i'm missing something

Post by Niall »

Idea came to me sitting on the bus this morning (Car off road).
Ignotion system runs about 2 or 3 cables into the engine bay yes?
Would it be possible to run them back into the dash and put a little on / off switch in before running it back to the engine bay.

You could locate the switch wherever you want (hidden preferably). This way you could immobolise your car so that the ingnition would only work when the switch was activated.

The reason I would run it back from the engine bay is to make it more difficult to hotwire. Seeing as when most cars are hot wired the keyhole gets yanked off and wired from there, by moving the switch further down prevents them going past it.

Is this possible?

Have I missed something crucial or does everyone do this anyway?

Your thoughts

Niall


Image
User avatar
filmidget
Posts: 258
Joined: Fri Mar 06, 2009 12:16 pm
fill in the right answer: 10
Location: Nottingham

Re: Really cheap immobiliser trick (unless i'm missing something

Post by filmidget »

People have been doing similar for years...

Another method that only requires running one wire, is to earth the coil through a hidden switch - will turn over but not start.


'82 GTI 'CagedRoc' - MG Midget - Volvo 850 T5 - Citroen C2 GT - Lilac Trailer Custodian
Current owned:roadworthy factor = 75% (personal record)
User avatar
Jetfire
Posts: 18
Joined: Wed Apr 01, 2009 11:13 am
fill in the right answer: 10
Location: Pembrokeshite

Re: Really cheap immobiliser trick (unless i'm missing something

Post by Jetfire »

Or just take out the fuel pump relay for the injection cars.


User avatar
Risocco
Posts: 1374
Joined: Wed Apr 01, 2009 1:09 am
fill in the right answer: 10
Location: Costa-Del-Kidderminster

Re: Really cheap immobiliser trick (unless i'm missing something

Post by Risocco »

filmidget wrote:Another method that only requires running one wire, is to earth the coil through a hidden switch - will turn over but not start.
Sorry, I'm useless with electrics (ask Mr Baker) could you please explaine to me how to do this in plain English?

If I sounds thick its cuz I r. :blush:

Alex


1983 GL
1986 GT
1994 Corrado VR6
Joe87
Posts: 206
Joined: Sun May 10, 2009 2:50 pm
fill in the right answer: 10
Location: Cambridge UK

Re: Really cheap immobiliser trick (unless i'm missing something

Post by Joe87 »

Jetfire wrote:Or just take out the fuel pump relay for the injection cars.
Yeah that's what I do - you'd have to take the fuse box apart and figure out which wires (out of about 6) go together to get the car started without it...


Image
1987 GTX
kariba
Posts: 22
Joined: Thu Apr 02, 2009 9:49 pm
fill in the right answer: 10
Location: Loughborough, Leicestershire

Re: Really cheap immobiliser trick (unless i'm missing something

Post by kariba »

Jetfire wrote:Or just take out the fuel pump relay for the injection cars.
As an auto electrician, this is the best of the cheap immobilisers :good:

Another one is disconnecting the battery neg terminal. They'll eventually figure it out, but its all about buying time...


Neil Baker on old website.

1985 Mk2 Flash Silver GTX - Now sold to Millsy20
Joe87
Posts: 206
Joined: Sun May 10, 2009 2:50 pm
fill in the right answer: 10
Location: Cambridge UK

Re: Really cheap immobiliser trick (unless i'm missing something

Post by Joe87 »

kariba wrote:
Jetfire wrote:Or just take out the fuel pump relay for the injection cars.
As an auto electrician, this is the best of the cheap immobilisers :good:

Another one is disconnecting the battery neg terminal. They'll eventually figure it out, but its all about buying time...
Chances of a car thief happening to have the correct relay are fairly slim though... :p


Image
1987 GTX
User avatar
Junglist
Posts: 555
Joined: Wed Apr 01, 2009 7:06 pm
fill in the right answer: 10
Location: MANCHESTER

Re: Really cheap immobiliser trick (unless i'm missing something

Post by Junglist »

What's best on non-injection? Don't want to disconnect battery as I'll lose all the settings in my stereo and clock.


Tornado GTII: Koni, Flo-flex, Girling, Weber, K&N, Powerflow, Goodridge, ASA, Yokohama... to fit: stainless 4 branch.
ImageImage
User avatar
james butler
Posts: 2978
Joined: Fri Apr 24, 2009 1:54 pm
fill in the right answer: 10
Location: birmingham

Re: Really cheap immobiliser trick (unless i'm missing something

Post by james butler »

yeah m8 thats wot ive dun on mine make a break in the earth wire on the negative side of the coil and bring it up to the dash somewhere only u know. bobs ur uncle


I dont mind project cars but I HATE SANDING!!!
Post Reply