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 Posted: Fri Feb 25, 2011 2:40 am |
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Joined: Feb 18, 2011
Posts: 16
Trade Rating: 0
Location: Leyland
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Hi, the immobalizer on my girlfriends 1.4 LX 2000 w reg is playing up. Since I put a new Battery on I have to take a lead off for a couple of minutes before the immobalizer will let the engine start. I have tried all resets that are mentioned on here but still no joy. Every time the car is locked with the remote and then unlocked it will not start until I disconnect the battery and then try again.
Also when it wont start and I have turned the ignition back off I can here the fuel pump in the tank buzzing. even when I have taken the key out and got out of the car. Help needed please.
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Posted: Fri Feb 25, 2011 7:08 am |
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Joined: Jan 22, 2011
Posts: 100
Trade Rating: 0
Location: Earth, most of the time!!
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Sounds a strange one mate, when you say buzzing could it be fuel being returned to the tank because even if immobilised the pump still primes up the fuel rail, its the spark which is cut out.
As for the immobiliser fault try locking/unlocking with key only and see if it helps, it could narrow it down if it does, otherwise maybe transponder aerial on ignition barrel or the key itself, hard to help over the net with these faults if you have tried resets etc
did you follow correct way of battery removal ie power down BSI etc??
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| If in doubt, drop a cog and put your foot down  | |
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Posted: Fri Feb 25, 2011 7:23 am |
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Joined: Mar 27, 2010
Posts: 3017
Trade Rating: 0
Location: Running from Ant and Lee and Adam...........
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Don't think he has a BSI at 2000.
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Posted: Fri Feb 25, 2011 7:26 am |
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Joined: Feb 08, 2010
Posts: 10151
Trade Rating: +12
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every 206 has BSI
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Posted: Fri Feb 25, 2011 7:35 am |
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Joined: Jan 22, 2011
Posts: 100
Trade Rating: 0
Location: Earth, most of the time!!
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I thought they do too!! its just pre multiplex on that age
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| If in doubt, drop a cog and put your foot down | |
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Posted: Fri Feb 25, 2011 1:40 pm |
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Joined: Feb 18, 2011
Posts: 16
Trade Rating: 0
Location: Leyland
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Thanks for your replies. I have now found out that something is also flattening the battery overnight. I put a new battery on yesterday thinking that it was knackered due to the cold weather but found out today after all the problems that the new battery has gone flat as well. Anybody any ideas linking the two things together ? i.e. Fully charged battery and immobaliser not allowing starting and then battery going flat overnight ? Totally stumped now.
Cheers. 
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Posted: Fri Feb 25, 2011 2:10 pm |
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Joined: Feb 10, 2010
Posts: 222
Trade Rating: +1
Location: manchester
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try starting the car with the spare key i have had similar probs with keys as for the battery have u checked things like interior light, boot light ,stereo all these may stay on have you installed anything extra yourself
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Posted: Fri Feb 25, 2011 3:26 pm |
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Joined: Jan 22, 2011
Posts: 100
Trade Rating: 0
Location: Earth, most of the time!!
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could be boot light, would explain why you didnt notice it when locking the car up.
A test you can do if you have a multimeter is disconnect the negative lead and connect your meter 1) onto negative battery cable 2) the negative battery post, this will show the draw on the battery make sure its set to amps and see how much current draw is going on ideally obviously it should read 0, if not something is taking power
ensure ignition off and all doors are shut too!
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| If in doubt, drop a cog and put your foot down | |
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Posted: Fri Feb 25, 2011 3:31 pm |
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Joined: Jan 22, 2011
Posts: 100
Trade Rating: 0
Location: Earth, most of the time!!
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you mentioned about the buzzing sound, i wonder if your fuel pump or relay is receiving constant live whereby its either running all the time or the relay is held in the on position causing a big current draw???
anybody else think it could be plausible, just thought about that buzzing sound you mentioned in OP
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| If in doubt, drop a cog and put your foot down | |
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Posted: Fri Feb 25, 2011 7:01 pm |
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Joined: Feb 18, 2011
Posts: 16
Trade Rating: 0
Location: Leyland
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You could well be right SDK206. I will check it with my multimeter tomorrow if there's enough in the battery to register,otherwise I'll have to charge it again first.
Cheers. 
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Posted: Sat Feb 26, 2011 1:17 pm |
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Joined: Jan 22, 2011
Posts: 100
Trade Rating: 0
Location: Earth, most of the time!!
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yes mate give it a good charge if its down on charge as results won't be accurate if the battery is nigh on dead
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| If in doubt, drop a cog and put your foot down | |
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Posted: Sun Feb 27, 2011 1:13 pm |
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Joined: Feb 18, 2011
Posts: 16
Trade Rating: 0
Location: Leyland
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Need to check the Fuel Pump Relay. They're known to be dodgy. Noticed a ticking from what I thought was the ECU. Apparently the Relay is underneath it. Would make sense because I dont think the ECU is going to sound exactly like a Relay ? The Fuel Pump was working when I was outside the car so I'm thinking it has gone faulty and caused the battery to go flat overnight as well as intermittent starting which I thought was the immobaliser.
Any thoughts please anybody ?
Cheers Maz.
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Posted: Mon Feb 28, 2011 10:28 am |
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Joined: Feb 18, 2011
Posts: 16
Trade Rating: 0
Location: Leyland
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Checked Fuel Pump and Ignition Multi-Relay underneath the ECU. Found that it had a hole in it where it had broken off its mounting lug. It was full of water. Just bought a new one (Dealer only !! £42 ). When the battery is charged up again, hopefully everything will be back to normal. Stands to reason it's sorted, thanks to a load of useful information on here. I'll post again when I've tried it after battery is charged.
Thanks for all your help, and I hope this is of use to others, as it seems to be a pretty common fault.
Cheers Maz.
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Posted: Mon Feb 28, 2011 3:58 pm |
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Joined: Jan 22, 2011
Posts: 100
Trade Rating: 0
Location: Earth, most of the time!!
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glad you should now be sorted, fingers crossed! Thats what these forum are for to help people out and its good you have figured it out pal
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| If in doubt, drop a cog and put your foot down | |
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Posted: Mon Feb 28, 2011 4:51 pm |
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Joined: Feb 18, 2011
Posts: 16
Trade Rating: 0
Location: Leyland
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Thanks again SDK206.
I will post my final result tomorrow. Hopefully it will be to say everything is now working properly again. 
Cheers Maz. 
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