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[SP_3.2]

Thanks will put that on the growing check list.

 

[SP_3.2]

Has anyone else had a similar problem and if so how did they fix it?

[VXL V6]

I was thinking perhaps knock sensor fault as well.... never really heard of on an Omega though....

We could always get a shared MAF and trial it on each car for a few months!!! Need about five others to chip in as well!!!!

[SP_3.2]

I have also just seen this and made me think about the fuel side of things again.


Silicon - blowing a head gasket can allow silicon to enter the exhaust and contaminate the sensor. Some fuels are also prone to high levels of SiO2 (Silicon Dioxide) in them and this will poison your catalytic convertor too. We recommend only filling your car up at branded filling stations (eg. BP, Shell), and not at supermarket filling stations, which source petrol from less advanced refineries. Other contaminants exist in cheaper fuels, and you are doing many parts of your engine a favour by not using them.

from http://www.lambdapower.co.uk/diagnosis/diagnostic_index.asp#q16

[SP_3.2]

I was thinking perhaps knock sensor fault as well.... never really heard of on an Omega though....

We could always get a shared MAF and trial it on each car for a few months!!! Need about five others to chip in as well!!!!

I think that would be a good move. Can the MAF be cleaned was thinking of trying it over the weekend.

How is yours runing any lights as yet.
I would be up for that.
Thank

[VXL V6]

No more Emissions Lamp, don't think there will be until I fill up with something different! Just going to stay on V-Power for the time being and see if it comes on, if it does without changing the fuel supplier then i'm going to look at the MAF idea, if it doesn't then it has to be something about fuel and how the ECU adjusts the mixture to match up..... that to me is knock sensor(s)

One thing that is worth checking on yours is the brake vacuum pipe that goes from the servo, around the back of the engine and to the R/H side of the plenum, on that right hand side, where the pipe runs by the air conditioning pipe, is it touching / rubbing at all.

[VXL V6]

Can the MAF be cleaned was thinking of trying it over the weekend.

I think it is a very fragile device, have a read up of MDTMS guide to it on here

http://www.omegaowners.com/forum/YaBB.pl?num=1155126172

[SP_3.2]

Good point i will have a check of that after work. Would that cause the light to come on?

Hope yours stay,s off .I am going to also stick to V-power now and see if that clears things up any.

Thank for the help.  

ps  Are the Knock sensors alot or hard to fit?    

[Golfbuddy]

I was thinking perhaps knock sensor fault as well.... never really heard of on an Omega though....

We could always get a shared MAF and trial it on each car for a few months!!! Need about five others to chip in as well!!!!

I think that would be a good move. Can the MAF be cleaned was thinking of trying it over the weekend.

How is yours runing any lights as yet.
I would be up for that.
Thank

There was a post some weeks ago regarding cleaning the MAF. It linked to a US website I believe. I have a 2001 2.2 and the emissions light came on and gradually became more frequent. This proved to be the MAF.

[VXL V6]

I am going to also stick to V-power now and see if that clears things up any.

ps  Are the Knock sensors alot or hard to fit?    

Bet it does if you have twenty 'clean' starts with no error code!

Don't know on knock sesnors, but read this:-

http://www.omegaowners.com/forum/YaBB.pl?num=1157560905

[SP_3.2]

I hope good old v - power does the job them.

or as SIR say,s to could be a new MAF  

[SP_3.2]

Just a bit of an update on the way back on Friday from work got home and swiched car off and back on againg and no Emission Lamp .Ihave stayed with V-power put £30 IN last night hopfuly this will keep it off.

Thanks

Steve

[Kevin Wood]

Just to say my 3.2 put its' emissions lamp on in February when we had a bout of fuel contaminated with silicone. I had it reset and it hasn't recurred.

I would tend to suspect poor quality fuel if it keeps coming on and appears to be fuel related, but it may be related to other problems which affect fuel mixture such as restrictions in the fuel supply and air leaks in the induction system, clogged air filter or a MAF problem. I wouldn't say a knock sensor is a likely cause.

The post-cat Lambda sensors are in a cooler part of the exhaust than the pre-cat sensors so this may well mean they're more prone to contamination, or at least any contamination doesn't immediately burn off in the hot exhaust gases.


Kevin

[SP_3.2]

Good point Kevin Going to stick with V-power had the fule filler chaged a few months ago but thinking of checking my air filter as i have a tig panle one fitted just to check that it is not playing around with the MAF. The thing is i have used it and keep it clean for the past 2 years no prob,s :-?

On well it never dull which you have an Omega.

      

[Kevin Wood]

If the filter needs to be oiled, use the oil very sparingly as it can contaminate the MAF sensor.

Kevin