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1

Omega General Help / Re: Lumpy idle and stalling

« on: 21 August 2019, 20:54:38 »

No, no fault codes now.
Filled her up with decent fuel n want out for a good long drive yesterday. Engine is fine and running perfectly, which is a massive relief.
I'm not sure what the incorrect sensor looked like- the new Vauxhall one has the same code stamped on it as mentioned in an earlier post, but is made in Romania, rather than Germany.
As for the time constantly resetting, I'm sure it'll sort itself in the end.

Huge thanks to everyone who has provided advice and help over the past few weeks. It is very much appreciated.

2

Omega General Help / Re: Lumpy idle and stalling

« on: 18 August 2019, 18:25:42 »

Well, sensor replaced yesterday and everything seems fine.
Drove it for a few local miles, just in case, to bring it up to temp. Hopefully, that's the issue cured.
Have to say, my mechanic was very sceptical that the sensor was at fault.

I have noticed tho that, the date keeps resetting back to 2000 on switching ignition on. Time is fine.
Will this cure itself once ecu clears the fault code?

3

Omega General Help / Re: Lumpy idle and stalling

« on: 10 August 2019, 11:42:40 »

£80 inc VAT.
The incorrect sensor was half that, and even that took three days to source. It's one if them things that, unless you have specific knowledge, you'd never think. Which is why main dealers charge so much... I trust my mechanic- he's seen me right in the past.

4

Omega General Help / Re: Lumpy idle and stalling

« on: 09 August 2019, 13:28:53 »

Popped in yesterday to the local dealer.. The part is now on order from Germany n will be here in 7-10days. when it arrives, I'll have a word with the mech and hopefully he'll pop out n fit it for me.

It's V009050743, which I assume is the same as the GM part. Chap at the counter said it was.
Oddly they don't do trade club any more, but he knocked off 10% anyway.

5

Omega General Help / Re: Lumpy idle and stalling

« on: 07 August 2019, 18:20:57 »

Spoke to the garage and the old sensor was a Bosch.
Not sure what it was replaced with (mech is on holiday) but it defo wouldn't be Bosch. Part cost is way too low.
So, will source a Bosch crank sensor and see where we go. Seen some on Ebay and Amazon tho may just go to local Vauxhall dealer.

6

Omega General Help / Re: Lumpy idle and stalling

« on: 07 August 2019, 03:49:29 »

I'll check the sensor when I get back from work later. From what I can gather, it should be on the front of the engine.
Vehicle had new plugs, and had a leaky cam cover replaced 2months back and has been fine on both LPG and petrol, though this is something to consider.
 All of these problems are when running on petrol- as long as it goes, I can get away on holiday!

7

Omega General Help / Re: Lumpy idle and stalling

« on: 06 August 2019, 21:16:02 »

From looking through the forum, seems could be still the crank sensor, either worn wiring or non-GM part.

8

Omega General Help / Re: Lumpy idle and stalling

« on: 06 August 2019, 20:41:17 »

Got an assistant to give it rev while I had a look about under the bonnet- there's a persistent ticking from the rear offside cylinder.
Thinking a misfire?

9

Omega General Help / Re: Lumpy idle and stalling

« on: 06 August 2019, 20:31:11 »

Ignition on and running, both show code 19. Incorrect rpm signal.
When revs drop to 5-600, it's normal idle speed, cuts out.

With maf sensor unplugged, car seems less lumpy, still shows code 19 and cuts out at the same rpm.

Any ideas.

10

Omega General Help / Re: Lumpy idle and stalling

« on: 06 August 2019, 12:49:19 »

Problem initially happened on lpg, so switched it to run on petrol and kept it on petrol since.
It runs on petrol at startup before autoswitching, when enabled, to lpg.

It takes awhile to switch to LPG when idling, and I don't want to be doing further damage to the engine in that time.
It was my LPG fitter who said crank sensor issues.

Will try mass air flow sensor later on too. It almost feels if the car is hunting before it stalls.

11

Omega General Help / Lumpy idle and stalling

« on: 06 August 2019, 12:10:39 »

I have an Omega, 3L V6 Auto. W plate 2000reg.
Lpg converted.

Fortnight or so ago, it stalled while in a car park, looking for a space (tick over revs, low speed). Fired back up immediately. Switched it to petrol, no issues.

Later on that day, stalled again, em light lit, wouldn't fire. Waited 10-15 mins, fired up. Sounded rough, like crap in fuel so got gallon of petrol in it- usually run it on quarter tank as lpg.

Fired up sounded fine. Pulled off drive, stalled. em light lit.
Mate reckoned crank sensor. Garage diagnosed n replaced crank sensor. Couldn't recreate fault.

Picked it up yesterday. Sounded sweet, drove fine. Got home, stalled on drive. Lumpy idle.
Ticks over at 500rpm, then stalls. Starts up straight away, then 30s later, stalls. Em light lit. Repeat twice, then fine. If I rev it, seems fine. Not moved it from driveway as it was a bugger to push home last time.
I'll post the paperclip trick diagnostics tonight.

Any ideas? I'm on holiday in a fortnight n really need the car!