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46

Omega General Help / Fault code 1405 on 2.2 petrol facelift.

« on: 11 October 2007, 13:35:01 »

Just had problem with the engine running very rough after fitting a new Egr. Engine hunting at tick over and light (car with spanner) coming on.

Car able to start and accelerate. Code read showing fault code 1405. Have done the resistance check from terminal on plug of Egr to earth. Readings found shows 3 volts  wrt earth, with ignition on. Same point but with ignition off, resistance showing greater than 500 ohm's.

Does any one know where the X83-55 connection is on a 2000 MY 2.2? I think it is in the foot well on the drivers side. Have removed the plastic cover and found what I think is the immobiliser unit. Is this the part I need to check for a good earth to the terminal on the Egr?

Been told the Sim Tech unit should have part number 24421815 on it.

Looking forward to replies, have already spoilt my day with finding out how much another unit will cost.

DaveL

47

Omega General Help / Re: EGR clean or replace

« on: 11 October 2007, 09:11:40 »

On the EGR topic.     What size of TORX bit do you need to remove it?

T45  
DaveL

48

Omega General Help / Re: EGR clean or replace

« on: 09 October 2007, 17:16:36 »

I've read quite a bit on here about cleaning the EGR, so am tempted to give it a go. My question though is, if Vx have run the diagnostic and told me I needed a replacement EGR (which they quoted £330 for   ) then is cleaning it going to do anything?

I'm guessing it's still worth a try as Vx would rather charge £330 than clean and put back on? Or does the fault reader give a definitive "you must REPLACE the EGR" ??

Cheers.  

..have a go at cleaning or if you want to blank off the valve. You must though leave the electrics connected to the DBW or faults will still be recorded. As a matter of interest VX did an exchange EGR for the 2.2 see if your dealer can still get this part. It is a lot cheaper than the new price. Also £330 is very excessive, a new valve from a motor factors made by the original manufactures (Delphi) is £126 + vat.

hth
DaveL

49

Omega General Help / Re: Symptoms of a failing cam sensor? 2.2i petrol

« on: 09 October 2007, 13:12:36 »

Bad starting when warm (engine that is ) and possible rev limiting to about 4500rpm

Hmm...okay.  I'll tell you my problem.  I have noticed recently that sometimes when accelerating quite quickly to 60 or 70mph, the car sometimes feels as though it is holding back slightly through the revs, and then the power comes back (like a 'surging' sensation).

I also had a strange experience when coming back from Skeg one night recently on the A158, driving at approx 55mph, the engine 'lost' all power for approx. 2 seconds, and then came back (with a slight jolt).  Expected EML to light but nothing.  Never happened since.....

Omega is a 2.2i CD Auto saloon with 35k on the clock.

Dan

Mine went with the exactly same problem. Had the codes read by local VX and found it was a EGR problem. Have blanked off this with a home made plate, but made too good a job of it. Had to drill a small hole underneath the piston side of the plate. Car responds as it should.

Get the code read and see if it is your cam sensor or some other problem.

hth
DaveL

50

Omega General Help / Re: Stupig egr

« on: 05 October 2007, 09:36:04 »

Frequently no cam sensor code on 2.2s

Interesting.

Dave.

51

Omega General Help / Re: Stupig Egr

« on: 05 October 2007, 09:35:20 »

Friendly dealer let me look at report back from VX about another motor with over richness after blanking off Egr. Would appear I made too good a job of blanking off the valve.  I cut a hole in my home made plate, 10mm, immediately below where the plunger on the Egr fits. Put Egr and modified plate back onto engine. Took car for a run of about 20 miles. No check lights came up, performance a lot better than before and gear changing smooth. Starts on the button and smooth tick over.

Just waiting for the 'frosty weather' to see if car starts in the cold, will keep you posted.

Another bit of information I found was on some Astra's they have been having problems with egr's and VX are recommending taking the Egr off. Putting a plate in the space, removing Egr completely and a software mod is coming out for the removal so faults do not keep popping up.

Dave.

Not for the Omega I am told.

52

Omega General Help / Re: Stupig egr

« on: 04 October 2007, 13:17:35 »

Just had the codes read yet again by my friendly local dealer, Mike Dundee will know the one I mean.

Fault code gives Egr and too rich exhaust. This is after putting a blanking plate between egr and base.

Dealer suggested putting a small 15 mm hole underneath where egr valve and blanking plate is and that should then get the rich readings down to working figures.

Dave.

53

Omega General Help / Re: Stupig egr

« on: 04 October 2007, 11:13:54 »

My thoughts to TB!

By the way, Mr muscle is not good at cleaning soot etc out, paint stripper is the answer.

You also need to be careful with blanking the EGR on later cars as it can be detected by the MAF....it might be this thats causing the further problem.

Did also try paint stripper as well. Nice clean valve seat inside egr. Have reseated Maf connector.

Dave.

54

Omega General Help / Re: Stupig egr

« on: 04 October 2007, 11:08:42 »

* cough * cam sensor * cough *

Would there not be a code set in this case?

55

Omega General Help / Re: Stupig egr

« on: 03 October 2007, 18:45:15 »

Ah, didn't see 2.2.

There's only one connector on the throttle with FBW and if that's disconnected you'll be going nowhere. Worth giving it a wiggle though.

Kevin

I will give it a wiggle, have had the connector come loose before but you know what it is like when you get blinkered in trying to chase/cure a fault. I think the egr prob is nailed and will try to get the codes read again in the near future.

Will have a look to see if the throttle butterfly is returning properly and also if the throttle body is clean inside.

Dave.

56

Omega General Help / Re: Stupig egr

« on: 03 October 2007, 18:41:38 »

Thanks for the PM James. I should have said my motor is a 2.2 petrol. I thought the Throttle Posistion Sensor or the tick over was done by tech2.

In that case, the TPS is on the side of the butterfly

TPS will cause the gearbox to limp if unplugged...

Even on fly by wire?

Er... I don't think a DBW would have a seperate TPS...

 

57

Omega General Help / Re: Stupig egr

« on: 03 October 2007, 18:38:24 »

Thanks for the PM James. I should have said my motor is a 2.2 petrol. I thought the Throttle Posistion Sensor or the tick over was done by tech2.

In that case, the TPS is on the side of the butterfly

TPS will cause the gearbox to limp if unplugged...

Even on fly by wire?

58

Omega General Help / Re: Stupig egr

« on: 03 October 2007, 18:35:10 »

Could be a failing crank sensor too perhaps?

Any trouble codes stored?

Kevin

Not when the dealer did the reading. Just showing egr.

Dave

59

Omega General Help / Re: Stupig egr

« on: 03 October 2007, 18:33:29 »

Thanks for the PM James. I should have said my motor is a 2.2 petrol. I thought the Throttle Posistion Sensor or the tick over was done by tech2.

60

Omega General Help / Stupig egr

« on: 03 October 2007, 18:22:22 »

Help....The subject says it all. Been trying to sort a egr problem with my mega. Usual probs, lumpy running on start up. Not reving then all of a sudden clears.

Had fault read by local dealer code showing egr. Takes egr off and cleaned with Mr Muscle. Egr back on motor and engine revs and starts o.k.

After a run of about 5 miles engine warmed up fault light comes on along with check auto gearbox. Stopped car switched off then on engine and every thing o.k.

Then engine looses power, and car with spanner comes on. Take Egr off again and this time make a blanking plate. Put Egr back on with new plate. Car starts o.k. from cold with no hunting but after 2 mins auto gearbox check comes on.

Now can some of the more knowledgeable ones explain why this could be? One of my thoughts is that fuel is getting past the injectors causing a fuelling problem. If I set off straight away, after starting the engine, the check light does not come on.


Would be interested on others thoughts.

DaveL