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Author does this sound like the immobilizer?
chloe16v
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Registered: 29th Nov 07
Location: Rotherham
User status: Offline
10th Apr 10 at 20:42   View User's Profile U2U Member Reply With Quote
getting pissed off with this car now

4 out of 5 times my car will start no problem at all but a small amount of time it wont start at all but if i walk away from the car for 10 mins then it will start again no problem, although today the car just cut out at a junction an wouldnt start so had to be towed home but later on the car started again no problem, does that sound like a problem with the immobilizer? if so is there anything i can do? if its not the immobilizer does anyone know what it might be?

car is a astra coupe z20let
chloe16v
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Registered: 29th Nov 07
Location: Rotherham
User status: Offline
11th Apr 10 at 10:37   View User's Profile U2U Member Reply With Quote
ttt
Jake
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Registered: 24th Jan 05
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11th Apr 10 at 10:40   View User's Profile U2U Member Reply With Quote
i had the same problem with my corrado. some gimp tapped in the alarm ecu power cable to the power cable for an amplifier and every time the amp power cable was drawing alot of volts it was draining the power from the ecu and cutting in the immob
jay26
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Registered: 22nd Feb 08
Location: North Lincolnshire
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11th Apr 10 at 10:47   View User's Profile U2U Member Reply With Quote
Crank sensor? read the faut codes
chloe16v
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Registered: 29th Nov 07
Location: Rotherham
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11th Apr 10 at 10:51   View User's Profile U2U Member Reply With Quote
only fault code that comes up is the o2 sensor but that has just had a new one fitted a month ago
Jake
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Registered: 24th Jan 05
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11th Apr 10 at 10:59   View User's Profile U2U Member Reply With Quote
has it got an aftermarket alarm
chloe16v
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Registered: 29th Nov 07
Location: Rotherham
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11th Apr 10 at 12:08   View User's Profile U2U Member Reply With Quote
no just the vauxhall standard alarm
oceansoul
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Registered: 19th Jun 06
Location: Sunbury, Surrey
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11th Apr 10 at 13:42   View User's Profile U2U Member Reply With Quote
If its the immobiliser i think the Engine Management light should flash at you whilst your trying to start it, saying that it is rejecting the transponder in the key.
djgritt
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Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
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11th Apr 10 at 14:40   View Garage View User's Profile U2U Member Reply With Quote
Sounds like a Sensor issue - does the EML light operate? (in case a bulb has been removed)

As said, immobiliser fault should see the EML flashing where it rejects the key chip
sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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11th Apr 10 at 16:48   View User's Profile U2U Member Reply With Quote
When you try to start the car can you hear a very faint thud coming from the engine bay? If so it could be a starter motor is needed as when it heats up = expands + worn = new one needed. Could be flywheel ring gear is a bit chewed at a certain point.
chloe16v
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Registered: 29th Nov 07
Location: Rotherham
User status: Offline
11th Apr 10 at 17:30   View User's Profile U2U Member Reply With Quote
EML is on all the time but the only fault code is for the o2 sensor, this came from a tech2, the light doesnt flash
harrisp
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Registered: 15th Dec 07
Location: Derbyshire
User status: Offline
11th Apr 10 at 19:39   View User's Profile U2U Member Reply With Quote
As said immobiliser usually flashes EML but nothings ever definite with electrics .

 
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