Checking your Computer for Faults (VN - VP)

[ss_5spd]

is there any way to adjust the timing on a vn 5 litre?? mine is idling a lil rough but it wont rev. it just dies as soon as u try to rev??

[jack of all trades]

i get 12 too but my car wont even start

[byteme9]

Tried myself I have a thermo fan so didn't come on. I've noticed my engine light when bridged continuasly to flash. Anyone have any help on this. or have I've done something wrong!

[ozzykev]

Can anyone point out where I need to look please?
I spent about an hour and I cant find it, I even looked at the driver side where it isnt supposed to be.
Its a 91 VP commodore.







I hope the pics arent too confusing.. thanks

[sexy holden chik]

Hi...
does anyone have the full list of the codes aND what they mean and a full details of how to do the test on a 89 vn 3.8ltr v6

[Jxw]

test is as shown in the first page of the thread, jumper the point with a paper clip, turn ignition on but don't start the car, count the flashes as described earlier.
Just Commodores - For All Your Holden Commodore Needs for a listing of vn fault codes

and i know it's a late reply but ozzykev, in the bottom pic to the left where the main loom is going to the engine bay through the carpet, looks like the aldl connector is looping back towards the firewall under the carpet/underlay, pull the smaller bunch of wires back

[VKCOMMO]

Can anyone point out where I need to look please?
I spent about an hour and I cant find it, I even looked at the driver side where it isnt supposed to be.
Its a 91 VP commodore.







I hope the pics arent too confusing.. thanks

Mine was sort of under the carpet behind all that..

[troy294]

I have a 1994 vr statesman , testing the eCu , is it the same process

[Jxw]

I have a 1994 vr statesman , testing the eCu , is it the same process

no it's different, the connector is under the steering wheel and it's a different set of pins, you want this thread Checking error codes VR/VS (Revised)

[brooke2012]

bridged the a +b and did the diagnostic on my vp calais and no lights flashed up but still problems i'm having

[ozzykev]

Mine was sort of under the carpet behind all that..

and i know it's a late reply but ozzykev, in the bottom pic to the left where the main loom is going to the engine bay through the carpet, looks like the aldl connector is looping back towards the firewall under the carpet/underlay, pull the smaller bunch of wires back

Thanks for the replies, I had another look.
I'm still confused! I pulled a bit more carpet and stuff out of the way and I think that I've found it, but it seems to have been put away into the engine bay?
Here's what I'm looking at:





Could this be it? If so I'll have to try and get it out of there after work tomorrow.
Thanks for any suggestions, I can use some help :')

[ozzykev]

Well, you wouldn't believe it! that was it.
I guess the previous owner put it there for 'easy' access from under the bonnet, instead of behind the passenger kick panel?

So much trouble for a code 12 lol, but thanks.

[TRICKEDUP]

hello all i had two codes coming up code 13 - O2 sensor, ive now replaced that, and the other one was code 43- knock sensor.
Now i was told that my ute doesn't have a knock sensor so how do i get rid of the error so it reads 12-all good. anyone help please.
My VP ute was stalling when you booted it and after fitting new O2 sensor its running excellent now but engine warning light was still going off and on, but i hadnt disconnected the battery to reset the ecu i have now and its off for now. Can someone tell me or show me a diagram where the knock sensor may be please, this is my only drama now , and one other thing i dont know wat the previous owner has done but left blinker flashes left signal, right blinker flashes the park break light, and when i engage the park brake my oil light comes on representing the park break please help me asap.