Mk3 VR6 Electronic issue

[Lawry]

Hey Fellas

Im new to this site, so i apologize in advance if i have posted this in the wrong section, anyway the problem is as follows:

The battery died a short time ago + the vr6 hasn't been run for some time now, anyway.. i believe my brother tried jump starting it with a portable jump starter, however i think he placed positive on positive and negative on negative instead of earthing/grounding the black. I hear that this can cause a surge of some kind which can effect the computer.

The golf will start up with another battery however it will cut off/ almost straight away once the engine fires, even if i "rev" it

If im right about the computer issue, is there anyway which i can get my hands on a aftermarket/second hand computer? and for how much?

"1996 Mk3 Vr6 Golf"

Any help would be greatly appreciated

Cheers Matt

[Golf Loon]

I`d say its the immobilizer cutting in. You are probably using the wrong key or have lost the chip out of the key.

[Lawry]

aw i think i have used both the origonal and spare key. I have also tryed starting the car with the alarm on and off.
im not sure what it is but I hope your right

[Golf Loon]

Factory immobilizer.

If you have some aftermarket rubbish attached to the car, particularly if it is a repeller alarm, I`d cut it out and put the wiring back to stock. 90% of the time that fixes the problem.

[Lawry]

Cheers for your help

As far as i know its the standard factory alarm
Anyway i will update it as soon as i grab a new battery and see how that goes.

fingers crossed

Cheers Matt