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[Elitenut]

Hi all

The car was miss firing, caused by the cam shaft gaskets which were leaking and filling the spark plug wells with oil& No.1 HT lead 0 Ohms, no fault light or codes.

After inspecting the engine I have replaced the cam shaft gaskets, HT leads, spark plugs & Breather clean as per forum guide on my sons 1997 2.5 V6 Elite.

The original problem hasn't been fully resolved as the car is still miss fires on tickover & is producing code 59 with the EML light.

Could somebody explain what and where to find the Intake Manifold Valve 1 please.

Thanks

Brian

[colv6]

hi i had the same fault code on mine and eml light on, have a look at the first pic on this thread dont know the proper name for this unit but where the head of the screwdriver is that unit had become unpluged

http://www.omegaowners.com/forum/YaBB.pl?num=1152564281

pluged back in and fault code gone and eml light out

HTH

[Elitenut]

Thanks colv6 for the reply,
 I've checked that this morning and it was connected. I also compressed the tube on the front of this valve while the engine was running and the revs dropped. Also the revs dropped when I disconnected it.

I am right in thinking, the purpose of this valve is for fast idle on start up.

[big-o-bob]

I had a code 59 on mine, and it was running lumpy.

It turned out to be the electrical plug (Not plugged in fully) on the lower manifold injector wiring.

To get to the plug, you need to remove the plenum.  The plug can then be found at the rear of the lower manifold, secured to the engine lifting eye with a clip.  

This is what the problem was in my case anyway, but I suppose it could be something else related to the manifold or related wiring.

Hope this helps

[Elitenut]

Thanks All,

For the advice given in my time of need.

Just to let everyboby know, my sons Omega V6 2.5 is running as smooth as silk once again.

Problem 1) code 59 was caused by the valve at the back of 2-4-6 bank not connected.

Problem 2) Misfires and lumpy running caused by not paying attention when assembling the plenum!
Kitchen roll paper, to protect the ports not removed before assembly.( put in by my sons mate when he saw me put it in the inlet manifold, WHO NEEDS HELP)

Thanks again for your help and advice.

Brian