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[Marie]

well after a loadof fault diagnosis i think i have found the problem but would just like some clarification that what i found could have been the problem.

okay bit of history......

when we fitted the LPG system my abs light came on. decided it had a mind of its own.

it has had a range of problems never the same problem.
 it wouldnt play up at all if you drove under 30 mph
 the light would come straight on
 it would not come on then you would feel it under foot.
 it wouldnt come on then youd hear clicking from the glove box area then the click noise would stop and the light would appear.


now at newant TB spent a good hour with his tech 2 and Mark looked at the abs ecu l conection. to cut the disanosis short we extablished that it could possibly be a broken cable.

well saturday i when back to where we could have potentaily broken a cable when installing the LPG which would be to my dislike in the scuttle on the passenger side even my small arms are cut to smitherines from trying to open up the bung and loom. 

okay so im looking for a brake in the right sensor cables brown and red and blue and red. once i cleared all the grey gue off i found them but no breaks.  but i did find  the two black cables slightly larger then then then abs wires had the coloured protective shething broken and they were right next to each other. well i separated them best i could and put the loom back together. at the time i was gutted and thought i was going to have to look else where for the suspected break.

well today the light hasnet come on at all  we have done various speeds road conditions and still nothing.

so heres my question could these blacks cables have been my problem, i have a feeling they are earths and wondering if they were arching? any ideas??? if not related maybe where i have disturbed the loom its got a deccent connection now.

fingers crossed that was it but time will tell.

[Kevin Wood]

Sounds like you may well have found it. Given that the problem appeared shortly after the LPG was installed I think it's highly likely.

Black wires would normally be ignition switched supply in GM colour coding although they may be something else, of course.

[Strangechap]

I think ABS systems are VERY sensitive. Any interference and they deactivate.

On my old Granada the ABS played up and I traced it to a connector that suffered water ingress. Little bit of arcing caused by corrosion on the wire caused it to get worried and deactivate all the time.

Of course we are talking about Omegas here, but I suspect the technology is very similar.

[Brikhead]

Black wires would normally be ignition switched supply in GM colour coding although they may be something else, of course.

I think the A.B.S. wires are shielded with black coloured insulation...

[Kevin Wood]

Black wires would normally be ignition switched supply in GM colour coding although they may be something else, of course.

I think the A.B.S. wires are shielded with black coloured insulation...

Might well be the shielding of 2 of the sensor cables touching then. Might have been enough for the ECU to get the hump.

[Marie]

dont think the abs cables are sheilded until they exit the cab at the boot area.

i found the colour coded cables as per the book of lies all 8 were fine just the two black cables i found.

jase drove her today and she is still playing nice 

[Kevin Wood]

Well, fingers crossed it's sorted then. I think it's likely. As I said, there's only one thing that could have caused the damage and it coincided perfectly with the fault appearing.

Now, just trying to remember who was on "skewer detail" when we fitted the LPG wiring.

[Marie]

Well, fingers crossed it's sorted then. I think it's likely. As I said, there's only one thing that could have caused the damage and it coincided perfectly with the fault appearing.

Now, just trying to remember who was on "skewer detail" when we fitted the LPG wiring.

  If i remember rightly i beleive it was me 

fingers are crossed thats its fixed

[TheBoy]

I reckon you've got it Marie - we were getting no signal at all from that wheel sensor, so the fact the light it off means the ECU now thinks the rotational speed of that wheel is plausible


Did we swap the sensor back around the right way (we swapped left to right to test the sensor itself - did you crawl back under to put it back as it was)?

[Marie]

I reckon you've got it Marie - we were getting no signal at all from that wheel sensor, so the fact the light it off means the ECU now thinks the rotational speed of that wheel is plausible


Did we swap the sensor back around the right way (we swapped left to right to test the sensor itself - did you crawl back under to put it back as it was)?

i  certainly did sunday morning while you were still in the land of nod  im an early bird me 

[TheBoy]

I reckon you've got it Marie - we were getting no signal at all from that wheel sensor, so the fact the light it off means the ECU now thinks the rotational speed of that wheel is plausible


Did we swap the sensor back around the right way (we swapped left to right to test the sensor itself - did you crawl back under to put it back as it was)?

i  certainly did sunday morning while you were still in the land of nod  im an early bird me 

It was that applejuice I was drinking, it made me sleep