VP VQ ABS Help needed

Wiring diagrams and questions
VTXU8
Posts: 93
Joined: Sun Dec 17, 2017 9:12 pm

Re: VP VQ ABS Help needed

Post by VTXU8 »

I agree with Charlescrown, wheel speed sensor. Particularly passenger side front. Check the plug connection inside the engine bay on the chassis rail (below the air box i think). I had the same problem with my 93 vp calais. No abs light till a few minutes of driving. I found the plug had become brittle and terminals wouldn't make proper contact once plug became hot. I fixed this by ensuring proper connection then taping the plug with insulation tape. The abs module does a self test everytime you start to drive. If it was an issue, the abs light would come on straight away.

I also had and abs light issue with my vt after a few mins of driving. Turned out that my wheel was so badly buckled that it would throw the abs light.
VTXU8
Posts: 93
Joined: Sun Dec 17, 2017 9:12 pm

Re: VP VQ ABS Help needed

Post by VTXU8 »

Just in case you don't already have this info. This is from my old Gregory's manual for vn/vp. Sorry for poor quality.
ABS1.JPG
ABS1.JPG (165.99 KiB) Viewed 1114 times
ABS2.JPG
ABS2.JPG (144.82 KiB) Viewed 1114 times
Charlescrown
Posts: 1829
Joined: Sat Aug 06, 2011 7:58 am
cars: V8 VR Commodore BT1
LB Lancer 2L turbo & Delco
Starion TBI with Delco
Mitsubishi Lancer EVO4 track car
NA MX5
3 vintage motor bikes
Location: Padstow NSW

Re: VP VQ ABS Help needed

Post by Charlescrown »

This is the diagnostic pinout used on the VR ABS ECU. Perhaps someone might recognise the diagnostics and tell you what to do with them. My guess is pin 30 is earthed and the ABS light starts flashing. Please note I have no idea if the VP uses the same ABS ECU.
Attachments
Holden VR ABS.pdf
(425.86 KiB) Downloaded 64 times
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: VP VQ ABS Help needed

Post by vp304 »

Vtxu8 thanks for those scans.
Got any scans showing what the gap for the abs sensor to ring should be
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: VP VQ ABS Help needed

Post by vp304 »

Charlescrown thanks for that il wait for vp vq diagnostic info as i dont wanna probe wrong spot and blow something up lol. Parts for these vp vq abs cars are hard as to find lol
Charlescrown
Posts: 1829
Joined: Sat Aug 06, 2011 7:58 am
cars: V8 VR Commodore BT1
LB Lancer 2L turbo & Delco
Starion TBI with Delco
Mitsubishi Lancer EVO4 track car
NA MX5
3 vintage motor bikes
Location: Padstow NSW

Re: VP VQ ABS Help needed

Post by Charlescrown »

I'm sure I have an ABS computer for that model but first is to find it amongst the pile. I bought it as a spare for my VR. You need to get hold of the wiring diagram for your model.
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: VP VQ ABS Help needed

Post by vp304 »

I think i have a vr abs ecu also of a vr i wrecked years ago. Not sure if its same as vp vq one and not sure if thats problem yet or not.
VTXU8
Posts: 93
Joined: Sun Dec 17, 2017 9:12 pm

Re: VP VQ ABS Help needed

Post by VTXU8 »

vp304 wrote:Vtxu8 thanks for those scans.
Got any scans showing what the gap for the abs sensor to ring should be
Air gap between abs sensor and pulse ring?

Front- 0.30-1.12mm
Rear- 0.3- 1.3mm
VTXU8
Posts: 93
Joined: Sun Dec 17, 2017 9:12 pm

Re: VP VQ ABS Help needed

Post by VTXU8 »

Wiring diagram for vp abs pdf
abs wiring diagram for vp.pdf
(983.2 KiB) Downloaded 86 times
vp304
Posts: 451
Joined: Wed May 19, 2010 2:21 pm

Re: VP VQ ABS Help needed

Post by vp304 »

Vtxu8
Thanks heaps for that
I like how remote the wiring for the abs system is like you could take it and adapt onto any other car by look of it.
Post Reply