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1

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 21 February 2017, 19:15:26 »

Cleared all the codes again and went for a drive. Did over 50 miles and all ok.
But I have now read the codes again and now get:

P1740
P1781
P1525
P1612
P1613

so some different codes than before even though it has been running ok.........I'm confused....any ideas?

2

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 20 February 2017, 19:41:23 »

Hi, idling is ok. I have cleaned the crankcase breather, which I think is the one you are referring to. It is back on and in one piece. Thanks for trying though.

3

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 17 February 2017, 17:45:18 »

Replaced the crank sensor - not easy to get at!!!
It was running well and I did about 50 miles all looking good then it went back into limp mode again!!
Haven't read the codes yet.
Ive changed all the sensors so what next.
Can't be a real mechanical fault as it was running great between limp modes.

4

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 16 January 2017, 12:35:18 »

I cleared them out and ran the engine while not moving and all good.
Drove up the road for about 10 minutes and still all good.
Then while driving it kicked into limp mode and all the same codes were back.
So seems intermittent and maybe only appears while driving.
Also maybe only when hot?

5

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 15 January 2017, 14:11:44 »

I am getting the code p1740-08 from the gearbox.
Torque control error.

The only sensor I haven't changed is the crank......could this be the problem?

6

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 08 January 2017, 20:51:31 »

I'm not sure if I can read gearbox codes. I have an ELM327 that connects by bluetooth to my tablet.

7

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 08 January 2017, 15:48:46 »

Changed the throttle body with a used one. I gave it a very thorough clean first.
The codes all  cleared at rest and revs etc were ok so I though that was it...but...
When driving down the road it was ok until I tried hard acceleration then limp mode kicked in again.
Even after clearing the codes it now feels as if the gearbox is slipping all the time.

Not sure if this is related to the original faults or I have multiple faults.

As I am beginning to doubt myself can someone confirm the orientation of the cam sensor is the reverse of that shown in the final picture in the how to guide...

8

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 03 January 2017, 12:27:02 »

Don't know if this has any bearing on the problem but I also changed the battery and alternator.

9

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 01 January 2017, 17:26:57 »

Replaced the cam sensor but still the same error codes also 1700 which I missed off the list above.

Any suggestions?

Happy New Year...

10

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 27 December 2016, 21:57:02 »

Yes I've cleaned the throttle body and breathers. Also replaced the rocker cover gasket as there was oil in the plug holes. The locaĺ Vauxhall dealer parts dept was shut today so hoping to get the cam sensor tomorrow.

11

Omega General Help / Re: fault codes p1740 p1120 p1550 p0120

« on: 27 December 2016, 11:47:54 »

It is a 2.2 petrol auto.
Do you reckon it is gone again after 5 years?

12

Omega General Help / fault codes p1740 p1120 p1550 p0120

« on: 27 December 2016, 11:35:22 »

Had the codes above and changed the tps. Still get the same and sometimes the throttle doesn't work. ATF was low so topped it up with just over 1 litre. Now codes still there and won't clear.
Read the forum and cam sensor seems popular, I did change it with a genuine one about 5 years ago,  could it have gone again?

13

Omega General Help / Re: 2.2 rad fan ?

« on: 23 June 2013, 12:18:41 »

My fan's not on all the time but comes on fairly quickly and the temperature guage reads low. Temperature sensor maybe?

14

Omega General Help / Re: 2.2 petrol failed emissions high CO

« on: 10 February 2012, 16:12:35 »

tested on petrol only - didn't mention lpg

15

Omega General Help / 2.2 petrol failed emissions high CO

« on: 10 February 2012, 15:53:47 »

Hi
Failed the MOT on emissions today. The CO level is very high at 5.8% (limit is 0.5%).
Seems very high to me.

The tail silencer has a leak so that is not helping so i will change that first.
My plan is then new spark plugs and air filter (plugs over a year old, air filter not changed in 3 years).
I've heard an injector cleaner may help - any views on that?
Also I run LPG mostly and last year there was discussion about BLVs being wrong due to normally running LPG - Can these be reset by disconnecting the battery?
Finally an italian tune up before the retest.

Am i missing anything here?

Cheers