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[george1965]

i have a immobiliser, have sourced used one with key. how do i ghange the chip from one key to the other and will i have to do anything else to start the car. its omega 2.5 v6, 1998.

[markey mark]

only way to change chip is take to vauxhall dealer or someone with a proper tech2 and you will also need your carpass  

[TheBoy]

i have a immobiliser, have sourced used one with key. how do i ghange the chip from one key to the other and will i have to do anything else to start the car. its omega 2.5 v6, 1998.

Engine ECU is tied to immobiliser.  Keys are tied to immobiliser.  So engine ECU, Immobiliser ECU, and transponders in keys all need to be paired up with each other.

What was wrong with original immbiliser>

[beemerdevil]

while we're on the subject of key fobs.......i got my security casd/codes from vauxhall, and had a new fob programmed and now all works well, but i dont want to pay VX megga bukks for another (spare) key - whos the Top Bod for keys on the forum??

[TheBoy]

while we're on the subject of key fobs.......i got my security casd/codes from vauxhall, and had a new fob programmed and now all works well, but i dont want to pay VX megga bukks for another (spare) key - whos the Top Bod for keys on the forum??

near you, Marks DTM Calib, but probably can't get the remote fob bit (try egay)

[beemerdevil]

ah....thats the man - cheers

[george1965]

i have a immobiliser, have sourced used one with key. how do i ghange the chip from one key to the other and will i have to do anything else to start the car. its omega 2.5 v6, 1998.

Engine ECU is tied to immobiliser.  Keys are tied to immobiliser.  So engine ECU, Immobiliser ECU, and transponders in keys all need to be paired up with each other.

What was wrong with original immbiliser>

[george1965]

 transponder on steering column was broken, was told by garage i would have to change that plus immobiliser is this true

i have a immobiliser, have sourced used one with key. how do i ghange the chip from one key to the other and will i have to do anything else to start the car. its omega 2.5 v6, 1998.

[TheBoy]

transponder on steering column was broken, was told by garage i would have to change that plus immobiliser is this true

i have a immobiliser, have sourced used one with key. how do i ghange the chip from one key to the other and will i have to do anything else to start the car. its omega 2.5 v6, 1998.

Transponder is in key.  The immobiliser ecu (with its associated pickup) is in steering column.

Forget what the garage are telling you for now.

What are the symptoms?

[george1965]

car would not start but took out battery and charged it, put it back in and after a lot of cranking it started, then it ran perfect for three or four weeks and went out saturday and would not start orange light flashes after i crank it for a while, but the ecu in the steering column has a big crack in the box part of it.

just got it mot'd three weeks ago, bought it secondhand six weeks ago, great car dont wnt to scrap it. HELP

[TheBoy]

If the eml flashes, the engine ecu hasn't seen an acknowledgement from immobiliser.

How many keys do you have?

[george1965]

i only have the one, what about the cracked ecu on the steering should i replace that with the used one i sourced or what should i do

[TheBoy]

i only have the one, what about the cracked ecu on the steering should i replace that with the used one i sourced or what should i do

where are you?

[george1965]

im in banff, aberdeenshire, scotland. im afraid

[albitz]

Hotel21 is in scotland,he has just acquired a tech 2. Its either him or vx dealer.