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Old 14-02-2010, 17:33   #1
K70MAK
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Car Wont Start (Fuel pump/Immobiliser Issue???)

Right Folks, loooking for some help with a strange issue i had with the car this morning.

Went out to start the car after 3 weeks of it just sitting, turned the key and the dash lights etc seemed to be very bright and nothing to indicate a flat battery (the battery was replaced about a week before i went away) i noticed that the little red led for the immobiliser that usually stays on until you put the key in was staying on and didnt seem to recognise the transponder,turned the key and it didnt even offer to start, no action from starter motor just silence. so i reckoned it was the immobiliser.
thought i would try a booster pack and the red led went out and the car turns over but wont fire. but i have noticed that the red led for the immobiliser does not come back on now once the car is locked and armed.


I took the battery out and charged it and put it back in but still no joy. no indication of the immobiliser working and car is still turning over but not firing.

am i right in thinking that if the immobiliser was doing its job the car shouldnt turn over? should i be looking elsewhere for the problem?

Its an auto watch immobilser and standard alarm

Any help would be appreciated

Kelman
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Old 14-02-2010, 17:55   #2
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Old 14-02-2010, 18:08   #3
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it will still turn over immobiliser usually inhibits fuel pump
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Old 14-02-2010, 18:10   #4
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Factory immobiliser doesn't cut starter motor - having said that I'm not you'll have the factory immobiliser enabled if it's a JDM model. Only the aftermarket alarm immobilser inhibits the starter. Sorry just re-read your post, don't know what the autowatch has been set up to inhibit.

Last edited by Brian Carroll; 14-02-2010 at 18:12..
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Old 14-02-2010, 18:17   #5
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I'm not sure if its a factory imobiliser or not, i found where its located, down in the drivers footwell just to the right of the fuse box, it looks like it could be factory fitted. i know the manufacturer of it is auto watch as it says it both on the transponder and the immobiliser.

The fact that the red led isnt coming on now is really strange. i'm 90% sure uts the immobilser thats packed in. is there any way to disconect/bypass it to confirm?

The immobiliser was on the car when i bought it so cant be sure if its factory or not.

Kelman
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Old 14-02-2010, 18:17   #6
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my autowatch cuts at least the starter and the pump, but the starter will clunk/click then nothing first time you try when it is immobilised

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Old 14-02-2010, 18:19   #7
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Thats what i thought, any time the car hasnt detected the transponder and i have had to wave it around to get it to detect it the car hasnt even offered to start, no clicks or anything. now it will turn over but not fire.
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Old 14-02-2010, 18:22   #8
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factory immobiliser is in the ecu
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Old 14-02-2010, 18:25   #9
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Quote:
Originally Posted by K70MAK View Post
Thats what i thought, any time the car hasnt detected the transponder and i have had to wave it around to get it to detect it the car hasnt even offered to start, no clicks or anything. now it will turn over but not fire.
Hopefully someone will correct me if i am wrong, but i'd be tempted to put 12v to the fuel pump while cranking it

saying this, have you checked all the relevant fuses?

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Old 14-02-2010, 18:26   #10
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Quote:
Originally Posted by todd-w View Post
factory immobiliser is in the ecu

Thanks for clarifying that, its very well fitted so wasnt sure if it was factory or not.
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Old 14-02-2010, 18:29   #11
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Quote:
Originally Posted by stu8 View Post
Hopefully someone will correct me if i am wrong, but i'd be tempted to put 12v to the fuel pump while cranking it

saying this, have you checked all the relevant fuses?

Stu

I would remover the fuel rail and give it a flick to see if there is any fuel at the rail, if not then do the above

If there is no spark then I would be looking at the cam or crank sensor.

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Old 14-02-2010, 18:29   #12
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where is the fuel pump fuse located? I havent had a chance to check the fuel pump yet, will do that first thing tomorow.

The fact that the immobiliser isnt acting like it usualy does is making me look toward this first

is there not a relay for the fuel pump aswell?
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Old 15-02-2010, 09:45   #13
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Major update......

Went out this morning and had a closer look at the fuses, and found that one of the 15A fuses the one right at the back of the fuse box under the bonnet had blown. I thought nice one thats the cause got a replacement and put it in. hooked up the battery and went to fire it up. turned the key and smoke started coming out of the vents on the passenger side. i ran out and disconnected the battery and set about locating where the smoke was coming from, strangely the fuse never blew this time.

I removed the glove box and removed the plastic cover and sill plate from the passenger side footwell to give access connector box as per photos below, i noticed that there was water sitting in between the plugs!! I started to remove the plugs and one was really stuck, managed to get it apart and found that the plug had melted and alot of the pins are rattling slack.

How should i go about fixing this? try and locate a 2nd hand loom and replace the plugs and any damaged pins? or just bypass the plug and join the wires together?

Also what is this plug for and what does it connect to?

my other concern is could anything else have been damaged if the fuse never blew this time!











Kelman

Last edited by K70MAK; 15-02-2010 at 10:01..
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Old 15-02-2010, 12:04   #14
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anyone?????
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Old 15-02-2010, 15:28   #15
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managed to source replacement plugs (cheers willox) just ordered a tool to remove the pins and then i'll set about changing them over and replacing the damaged ones.

Can someone tell me what the plug is for/connected to and is there a chance it has damaged anything else since the fuse didnt blow? it looks like the pins ahve just been arcing inside the wet plug and melted some of the wires, it only seems to be three pins that have been shorting out.

Kelman
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