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4591

Omega General Help / Tech2 says right front ABS sensor missing

« on: 29 April 2013, 20:55:37 »

1999 2 litre petrol manual saloon - new thread

Took my car to friendly Vx dealer with Tech2 and he says Front Right sensor absent. Great, think I. Problem solved. Not quite.

I unplug faulty sensor and plug in spare sensor, and turn on ignition. ABS light stays on. Puzzling. Compare both sensors with meter - both about 700 ohms.

I then attempt to remove front right sensor. Cannot turn allen screw - seems to be 5mm. Seems to be rusted in. New problem. Should I go in heavy, with torch and angle grinder, certainly destroying sensor, and not sure then if it would get out allen screw? Or could there be a break in the circuit somewhere else, and if so, where? Connector somewhere? ABS socket?

Please advise.

4592

Omega General Help / Re: V6 Exhaust Replacement - Labour Cost?

« on: 29 April 2013, 08:58:13 »

Hi Elite Pete,
                by a slot in the flange do you mean a saw cut radial to the screw hole?

4593

Omega General Help / Re: V6 Exhaust Replacement - Labour Cost?

« on: 29 April 2013, 08:32:41 »

Hi Andy B,
              great to meet you again in cyberspace! I still miss my Senators, did my most memorable journeys in them, cruising all over Europe at speeds (up to 150mph) that were beyond dreams in my childhood. In the Haynes museum there are Jaguars, Rolls Royces, Bentleys, Duesenbergs, etc, that in my childhood I drooled over. My father bought his first car, a pre-war Morris 8, in 1951, and I thought it was great. It failed to climb the hill from Wookey Hole to Cheddar it was so under powered and lacked a fourth gear. I never dreamed then that one day I should own a vehicle that could cruise all day in the 140s. My last great run was from Hamburg to Le Havre in six hours. Happy Days! And all done in a Vauxhall Senator 24v.

4594

Omega General Help / Re: V6 Exhaust Replacement - Labour Cost?

« on: 28 April 2013, 17:12:49 »

Hi Andy B,
             did we not meet before on the Yahoo Senator site? Senators were better in that the down pipes to cats and cats to middle sections were always joined by nuts and bolts, so if they broke off it did not matter.

I have found drilling out the broken bits of bolt tricky. They seem fairly hard, nearly as hard as my drill bits, and if the drill bit breaks off in the bolt I have a real problem. Is there any particular technique of drilling through the bolt?

 

4595

Omega General Help / Re: ABS light still on after ECU change

« on: 28 April 2013, 15:45:19 »

Thanks Albitz. that's bad news. The wires to the plug are substantial enough, I hoped the wires from socket to pcb would be similar. I suppose the wretched thing is mass produced by a clever machine, then the pcb to socket section is dunked in some soft setting compound to insulate and support the wires.

I have repaired pcb's in the past by spotting cracked soldered joints and resoldering them. I have repaired breaks in the printed circuits of Omega instrument panels by soldering in light wires where they have burned out. But this sounds beyond me. I wonder if I opened it up and probed around between socket pins and solder points on the pcb whether I could find the failed connection and slip in a light wire. Has no OOF member done that? Replacing central locking microswitches sounds delicate work, but members refer to it as a simple task, like a wheel change.

4596

Omega General Help / Re: V6 Exhaust Replacement - Labour Cost?

« on: 28 April 2013, 14:38:20 »

Oxy acetylene is not essential. I bought a Rothenberger Super Fire 2 MAPP torch a few years ago. Cost me £62, and cans of MAPP gas are about £10. This is hot enough to heat the downpipe end flange to red heat. I changed my exhaust last weekend. I heated the threaded flange to red heat, popped inside for a cup of coffee, sprayed the cooling flange with WD40, and (gently) unscrewed the screws. Makes the whole job easy.

 That torch was money well spent.

4597

Omega General Help / Re: ABS light still on after ECU change

« on: 28 April 2013, 14:15:50 »

Thanks Andy H. That makes a lot of sense. I recall a comment on the Catera site along those lines; it said repair can be achieved with aluminium conducting paint. I suppose what ecutesting does for £100 is repair the broken wire. I have noticed on the ECUs they return they have obviously opened the casing and repaired something. Can I do that? Has anybody in the OOF done that?

Are they aluminium wires? I cannot solder those. I hope they are tinned copper, or lacquered copper. Please advise.
. 

4598

Omega General Help / Re: ABS light still on after ECU change

« on: 28 April 2013, 10:41:45 »

Fellow OOF members,
                           one more curiosity in this ABS saga.
In the past I have had ABS problems.

In 1996 on a Citroen CX I had an intermittent ABS light coming on for a year, finally traced to a frayed front sensor lead. In 2007 on an Omega 3.2 I had intermittent light coming on, changing ECUs was no help, traced to wandering rear reluctor ring; cured by gluing it in place. IN 2011, Omega 2.5 manual estate, light came on intermittently and with increasing frequency, cured by sending ECU to ecutesting for repair.

In above cases, on ignition switch on ABS light would come on, then go off after 4 seconds. On this car (1999 2 litre manual petrol saloon) the light never came on. Did not worry me, passed 3 MOTs. Reading press this April I learn that bulbs are checked, so I put in a bulb (bulb had been absent). Bulb stayed on. Oh dear.

I had a spare ECU from a scrapped car, so I popped it in. Turned on ignition, ABS light came on, after 4 seconds it went off. Joy. Took for test drive, ABS light come on. Bother. Thereafter ABS bulb stayed on.

Thought I might have mixed up ECUs, so replaced original ECU. Turned on ignition, ABS came on, after 4 seconds went off. Confused. Went for test drive, ABS  light on again. And stayed on.

I do not understand why removing and replacing ECU should give it a brief burst of good behaviour. Could it be removing it from battery power? I have just nipped out, removed negative battery lead, and replaced it. ABS still constantly on. I do not understand it at all.

4599

Omega Electrical and Audio Help / Re: Controlling a JVC KS FX222 radio/tape/CDmultichanger from steering wheel

« on: 27 April 2013, 20:30:27 »

Thanks for the advice, Murph. I know it's an old bit of kit, but it plays very well, and I have it in my two best cars.

4600

Omega Electrical and Audio Help / Controlling a JVC KS FX222 radio/tape/CDmultichanger from steering wheel

« on: 27 April 2013, 19:36:22 »

I was just reading an old thread which suggested it was possible to buy kit to control an aftermarket radio unit from the Omega (2000 2.5 semi facelift petrol manual estate) steering wheel control from DND in Paignton, Devon. Is it possible to control the above JVC kit with their gear?

4601

Omega General Help / Re: ABS light still on after ECU change

« on: 27 April 2013, 17:17:22 »

Thanks Taxi Driver. For some reason automatics take speed information from gearbox output shaft, not rear wheel sensor, so they have different ABS ECU setup.

This car is my son Jonny's transport. I have it back for its MOT test. He lives in Chippenham. I live in Midsomer Norton, south of Bath. Every Friday I travel to Didcot for golf and tennis; my trade club registration is at Bellingers, Grove, near Wantage, so your country. One of my tennis chums has his Rover 75 service in Swindon.However Downside Motors, Chilcompton, is 3 miles from me, and they have a Tech2 and have helped me in the past.

My worry now is that you had faulty ECU diagnosed, but a new ECU did not cure it. Is the fault still with you?

Must check where Newent and Brackley are.

4602

Omega General Help / Re: ABS light still on after ECU change

« on: 27 April 2013, 14:46:36 »

Thanks to all for advice. Visual inspection of reluctor rings and cables reveals no obvious faults. Alarming tale from Taxi Driver about fault code saying faulty ECU but ECU change not curing fault. Too many actuators (sensors?) I do not understand. Was the ECU from an automatic?

Andy H is correct. Car has no traction control or servotronic power steering. Speedo works OK.

Are there members near me (BA3 2LP Bath Bristol area) with Tech2s who would help? What is the procedure? There is a local Vx dealer who might help, but I hardly know him.

4603

Omega General Help / Re: ABS light still on after ECU change

« on: 27 April 2013, 12:14:53 »

All four sensors have continuity, resistance about 700 ohms. Disappointing

4604

Omega General Help / Re: ABS light still on after ECU change

« on: 27 April 2013, 06:19:45 »

Thanks to Kevin and Entwood. I was caught out by a moving elector ring in the past, but at a quick glance at my rear pair they looked all right. I don't think the front rings can go anywhere, can they? I suspect a frayed front cable or failed sensor, so I will check for continuity next.Will report back.

4605

Omega General Help / Re: ABS light still on after ECU change

« on: 26 April 2013, 08:06:47 »

Thanks to dbug and apologies to all. On checking my photographs, both numbers end 0 273 205. Bosch put a diagonal line across their zeros, making it look like an 8. The 8 commencing the other number is quite different.