mk3 golf immobiliser

[leigh vr6 0]

hi i have a n reg golf cabrio vr6 was running fine the other day now it wont start turns over starts then cuts out after a few secs my scanner says its the immobiliser so i changed the box key reader and key with chip for that box but still does the same ifbi disconect the battery for 5 mins then connect it back up the car will start but if i turn it off then try to restart it wont again any help plz

[cabrioman 6]

get the immobiliser removed from the ecu mate is the easy way ... have a word with united motorsport on here they should be able to sort it out for you mate

[leigh vr6 0]

if i was to get another ecu with the same part number and plug it in will this solve my problem

[CALICO 130]

have you tried replacing the ring around the igniton key hole

another ecu with the same numbers wont help they are all individually coded

[leigh vr6 0]

ive replaced the ring chip and box from a car that was working fine but still does the same

[LadVR 0]

Im currently having the same issues too! I have changed the ring around the ignition barrel, made no difference, also checked and re checked all the electrics but no joy.

After hours of research on the internet (many hours worth) it looks like we have 2 options.;

1. replace transponder - you'll need to get it recoded by vw or someone with the software to match ket, ecu, transponder

or

2. Use a company who can recode the ecu to bypass the transponder (i think c2 offer this service)

[leigh vr6 0]

spoke to vw today thay said thay will put on diagnostic and if the key needs re codeing it will cost about £70

[Savage K 0]

Am having the same issue , replaced coil pack,  fuel pump relay , and crankshaft position sensor and still no joy 😢