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[Lazydocker]

Well the lambda sensors have been changed and that did not resolve the issue,intergrator 1 is still flatlining at 154.We also changed plugs which  made no difference.So thats 3 dis packs,3 sets of leads,3 sets of plugs,3 ICVs and still got this issue,could it possibly be a fault within the ECU.I'm getting to the point where I feel like just getting rid of the bloody thing anybody else got any suggestions before me and omega part company

I'm at a loss TBH Rob

I don't even think seeing it would make a huge difference after Daz has given it his all and it's been checked by the LPG specialist :-/ :-/ :-/

Can you just confirm that it plays up on both fuels but is more noticeable on LPG? If so, it still points towards an ignition (HT) problem to me

Hi Paul can confirm it does play up on both fuels but is more noticeable on lpg

This does point towards an ignition fault, which is at least a start, but I can't see what as you've now replaced everything I can think of (more then once!) :-/ :-/ :-/

I assume you don't have any fault codes showing?

[Robski]

No falt codes present,I am thinking because it has Vectra covers on which are deeper than omega covers that the plug leads are not sitting on the plugs fully which is causing a loss of spark at the plugs,think the way Im going is to get the cam covers changed.What do you think Paul could this be a possibility?

[Lazydocker]

No falt codes present,I am thinking because it has Vectra covers on which are deeper than omega covers that the plug leads are not sitting on the plugs fully which is causing a loss of spark at the plugs,think the way Im going is to get the cam covers changed.What do you think Paul could this be a possibility?

I'd have thought you'd have noticed that the leads weren't sitting on the plugs properly TBH but you have nothing to lose by trying :-/ :-/ :-/

Thinking about it though... I wonder if they're sitting reasonably well when cold but the little bit of expansion when the engine warms up is causing it :-? :-? :-?

Like I say, it gives all the pointers towards an HT fault and the fact there aren't any fault codes does back that up somewhat :-/ :-/

[Robski]

No falt codes present,I am thinking because it has Vectra covers on which are deeper than omega covers that the plug leads are not sitting on the plugs fully which is causing a loss of spark at the plugs,think the way Im going is to get the cam covers changed.What do you think Paul could this be a possibility?

I'd have thought you'd have noticed that the leads weren't sitting on the plugs properly TBH but you have nothing to lose by trying :-/ :-/ :-/

Thinking about it though... I wonder if they're sitting reasonably well when cold but the little bit of expansion when the engine warms up is causing it :-? :-? :-?

Like I say, it gives all the pointers towards an HT fault and the fact there aren't any fault codes does back that up somewhat :-/ :-/

TBH Daz did mention that the plugs were not central to the cam covers holes 1st time he changed plugs and leads.The spark was checked at York by Mark,all showed 40000 volts,but that was with the plug leads off the plugs,which has me thinking when we put leads back on the plugs they maybe not sitting snuggly to the plug due to the difference in depth of cam covers,if that makes sense(but Im not a mechanically minded person)

[Lazydocker]

No falt codes present,I am thinking because it has Vectra covers on which are deeper than omega covers that the plug leads are not sitting on the plugs fully which is causing a loss of spark at the plugs,think the way Im going is to get the cam covers changed.What do you think Paul could this be a possibility?

I'd have thought you'd have noticed that the leads weren't sitting on the plugs properly TBH but you have nothing to lose by trying :-/ :-/ :-/

Thinking about it though... I wonder if they're sitting reasonably well when cold but the little bit of expansion when the engine warms up is causing it :-? :-? :-?

Like I say, it gives all the pointers towards an HT fault and the fact there aren't any fault codes does back that up somewhat :-/ :-/

TBH Daz did mention that the plugs were not central to the cam covers holes 1st time he changed plugs and leads.The spark was checked at York by Mark,all showed 40000 volts,but that was with the plug leads off the plugs,which has me thinking when we put leads back on the plugs they maybe not sitting snuggly to the plug due to the difference in depth of cam covers,if that makes sense(but Im not a mechanically minded person)

Makes perfect sense but I'm just not sure it will solve the problem :-/ :-/ :-/

At the end of the day you have nothing to lose... Return it to standard and see what happens

[Robski]

No falt codes present,I am thinking because it has Vectra covers on which are deeper than omega covers that the plug leads are not sitting on the plugs fully which is causing a loss of spark at the plugs,think the way Im going is to get the cam covers changed.What do you think Paul could this be a possibility?

I'd have thought you'd have noticed that the leads weren't sitting on the plugs properly TBH but you have nothing to lose by trying :-/ :-/ :-/

Thinking about it though... I wonder if they're sitting reasonably well when cold but the little bit of expansion when the engine warms up is causing it :-? :-? :-?

Like I say, it gives all the pointers towards an HT fault and the fact there aren't any fault codes does back that up somewhat :-/ :-/

TBH Daz did mention that the plugs were not central to the cam covers holes 1st time he changed plugs and leads.The spark was checked at York by Mark,all showed 40000 volts,but that was with the plug leads off the plugs,which has me thinking when we put leads back on the plugs they maybe not sitting snuggly to the plug due to the difference in depth of cam covers,if that makes sense(but Im not a mechanically minded person)

Makes perfect sense but I'm just not sure it will solve the problem :-/ :-/ :-/

At the end of the day you have nothing to lose... Return it to standard and see what happens

I know you are say HT prob but where else can we go,its hads 3 different dis packs,3 different set of leads,3 sets of plugs which as far as we are aware leaves only the bloody cam covers which as they are vectra the left bank is on the right and right on the left.Any ideas will be taken seriously

[Robski]

At last got the car sorted,I got the vectra cam covers replaced with omega cam covers,this rectified the missing I had been experiancing,but would not run on gas,so went to see the independent installer who told me there was a couple of sticky gas injectors and adviced me to go back to the original installer.Went to see this yanker this morning and was still trying to tell me it was the car and nothing to do with the gas,I lost it at this point and gave him both barrells "theres a rather issue with sticky injectors I've had it looked at by someone else,get them sorted now"!!!!!.Off he scarpered rather sheepishly in to his unit and returned with 3 brand new injectors and within 10-15 mins job was done,he then asked if I was happy which I replied no I now want the gas ecu securing as you left it loose in the scuttle near the pollen filter,and he promptly went and got one of his boys to secure the ecu.Not yet happy I then started about the thermostat he charged me for last week and never did(think he was shocked to see I had photos of the so called new thermostat)to cut a long story short got my money back off the robbing barsteward.All before 11am well chuffed.
Seems the main cause of the HT issue was the bloody vectra cam cover.
Thanks to everyone who gave advice and assistance.
 

[Darth Loo-knee]

Nice one Rob, you should get some free motoring at long last.

Excellent result but such a shame it had to come after all this  

[Robski]

Not the way I wanted to have to be to get it sorted,but it did the trick,should of turned barsteward on him months ago.Think he was in his office popping valium by the time I left lol

[Martin_1962]

Very good result

[CaptainZok]

Phew, long job but it came right in the end.

[Robski]

Phew, long job but it came right in the end.

Not half "Captain"

[Lazydocker]

Glad it's all sorted now Rob... I was only saying to SWMBO last night I wondered how it was going! Was even telling her I might have to make a trip up to have a look at it for you

[crazyjoetavola]

A very satisfactory result and great effort by all concerned A clear illustration of this forum at its very best

[Lazydocker]

A very satisfactory result and great effort by all concerned A clear illustration of this forum at its very best

Took a lot of head scratching and a very long phone call discussing it but.... The result is worth it