Foxgaurd Immobiliser
Foxgaurd Immobiliser
Author
Discussion

gsx600

Original Poster:

2,740 posts

270 months

Tuesday 24th August 2004
quotequote all
Hi anyone got one of these in there 350 / 400. I think may be wired to alarm - which I've nearly ripped out

Anyone know about or have a wiring diagram for them as trying to see which circuit they disable

Seems to be the fuel pump after 10 seconds,

But before I took out alarm could not start the car at all with out the immobiliser key in place, but now will turn over with out the immobiliser key in place

Really want to remove completly and replace with a CAT 2 item, but at worst will rewire to get car running again.

350zwelgje

1,820 posts

283 months

Tuesday 24th August 2004
quotequote all
Before you read further, I have no alarm....
Immobilisers tend to cut power to the ECU as well.

Rob

gsx600

Original Poster:

2,740 posts

270 months

Tuesday 24th August 2004
quotequote all
Well think I have removed al evidence of imobiliser and alarm
Found out why the central locking did not work - now works

But every time I start the engine if fires but only runs for a couple of seconds. Anyone got any suggestions as to what to look for first ?

Could the ecu be picking up a fault and shutting down the engine ? Seems to do it on both ecus

gsx600

Original Poster:

2,740 posts

270 months

Tuesday 24th August 2004
quotequote all
Well think I have removed al evidence of imobiliser and alarm
Found out why the central locking did not work - now works

But every time I start the engine if fires but only runs for a couple of seconds. Anyone got any suggestions as to what to look for first ?

Could the ecu be picking up a fault and shutting down the engine ? Seems to do it on both ecus

shpub

8,507 posts

294 months

Tuesday 24th August 2004
quotequote all
No probably there is no connection from the ECU to the pump to keep it switched on. Been there etc. What happens is the pump is energised initially, the engine fires and the ECU should then keep the fuel pump relay energised and running... Except if it is not connected when the engine dies through a lack of fuel.

rus wood

1,233 posts

289 months

Tuesday 24th August 2004
quotequote all
The fuel pump gets power under two circumstances.
1) when the starter motor is running.
2) when the air flap in the air meter is open i.e. the engine is running.

It sounds as though you may not be getting fuel pump power in case 2. Try holding the flap open with ignition on and can you hear the fuel pump?

There are lots of other things that could give this symptom.

Russ

rus wood

1,233 posts

289 months

Tuesday 24th August 2004
quotequote all
sorry Steve your reply came when I was typing mine.

Russ

gsx600

Original Poster:

2,740 posts

270 months

Tuesday 24th August 2004
quotequote all
Rus / Steve

Yep I can hear the fuel pump cutting in when I open the flap

Tried with the flap held open then started the engine, but still cuts out after a couple of seconds.

Mind you the engine sounds nice and healthy and seems to want to hit 2000 rpm on startup and then die. Did have it running for 3 - 4 secs and revved up to about 4000 and then died as normal. Sounded superb

wedg1e

27,003 posts

287 months

Tuesday 24th August 2004
quotequote all
Given the age of the car and the mention of Foxguard, I thought I might have had a few answers for you, since I was in car security in the early 90s. Alas I can't find any info on a Foxy immobiliser, only their alarm systems, so it may have been a more recent fit.
However, reading from another maker's info that I have, there may be some similarities.
Micro Alarms used to market an immob. that could be used standalone or with an alarm system. In the latter case the immob. was disarmed when the alarm was. If used as a standalone, there were two inputs that would be 'committed' by the installer. We'd connect one to, say, the brake lamp switch and the other to , eg, the washers. So when you got into the car, you turned on the ignition, stood on the brakes and pressed the washer button, and the immob. would switch off allowing the car to start.
All the wiring was black, but if you cut open the cover of the immob. you would find letters printed on the wires adjacent to the plug where they were connected to the PCB. So in theory I could say 'link A and F, B and G' or whatever and away you go. The Micro system had a 5 second delay rather than the 10 you mention.
It may be that now you've removed the alarm system, the immob. is defaulting to standalone mode and expecting some inputs, which of course it's not going to get since they were probably never connected - though you may want to check for wires going to odd places like the cigar lighter, wash/wipe, reverse light switch...


Ian

gsx600

Original Poster:

2,740 posts

270 months

Wednesday 25th August 2004
quotequote all

Thanks for the alarm issue, it now appears the immobilizer is a micro mark (with a bulky key that you need in all the time to disable)tucked away under the dash which following the wires back from the black box only seems to be connected to the ignition switch

Have taken out of loop and connected the original wires back together again

Alarm was not connected before I had this issue but now fixed the central door locking.

Engine is still starting revving to about 2000 rpm and then cutting out
Will immeadiatly start on turning the key again. So I'm a bit confused now
I'm assuming if timing was out, would not start at all (when running sounds sweet), but will check anyway

There appears to be fuel feeding the injection system so possibly an electical fault on the LT side ?

gsx600

Original Poster:

2,740 posts

270 months

Wednesday 25th August 2004
quotequote all

Thanks for the alarm issue, it now appears the immobilizer is a micro mark (with a bulky key that you need in all the time to disable)tucked away under the dash which following the wires back from the black box only seems to be connected to the ignition switch

Have taken out of loop and connected the original wires back together again

Alarm was not connected before I had this issue but now fixed the central door locking.

Engine is still starting revving to about 2000 rpm and then cutting out
Will immeadiatly start on turning the key again. So I'm a bit confused now
I'm assuming if timing was out, would not start at all (when running sounds sweet), but will check anyway

There appears to be fuel feeding the injection system so possibly an electical fault on the LT side ?

350zwelgje

1,820 posts

283 months

Thursday 26th August 2004
quotequote all
Dare I say: Coolant sensor perhaps? I had these symptoms, except I was not able to restart immediately. This sensor is easy to check (bible or Haynes info) for ruling out purposes.......

Rob

gsx600

Original Poster:

2,740 posts

270 months

Thursday 26th August 2004
quotequote all
Checked everything out and it appears to be running now until I switch it of. But now trying to sort out distributor position / timing as the one that came with the 450 is slightly different to my original one, so making it award to position and then move to adujst timing
May have to refit the older unit that has more play in it than Andrew Lloyd Webber

Boy is it loud had it running against the 350 (well trying to jump it ) and a guy up the road thinks I've started a classic Norton up as well

Oil presure seems strange as keep on having to prime it to get the pressure back up, maybe cause keep leaving a couple of days without having fully run it properly. Well I hope thats the reason as I don't want to do this again this year !!