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[DavidC]

Hi,

I have just bought a ex police 3 litre MV6 manual.  I just have a couple of questions if anyone can help.

Firstly the engine management light is flickering.  It flickers more when idle and is more constant under speed.  I also find the V6 a little slow off the mark, it seems to almost be holding back but not quite as bad as that.   The only odd thing is that in 3rd and 4th it pulls like a train, good enough in fact to stay ahead of my brother S60 T5 which I think on paper is 40bhp more than a Mv6.  

I am just off to do the paperclip test but any feedback is much appreciated!

Thanks,

David

[DavidC]

Hi,

I got a code 16 - knock signal circuit 1 which means not alot to me lol

[hotel21]

Not sure on the management light thing or the knock sensor fault, but someone will advise later, no doubt...

As to the car being 'flat' on initial acceleration, does it pick up around 4.5k revs?  If so, probably inoperative multirams.  Check out the following...

http://www.omegaowners.com/forum/YaBB.pl?num=1153840176

http://www.omegaowners.com/forum/YaBB.pl?num=1152565204

also check the breather system...

http://www.omegaowners.com/forum/YaBB.pl?num=1152598350

Perhaps most important of all, when were the cambelt and tensioners changed?  Needs done at 40k miles/4 years without fail.  A good DVD available in the OOF shop for a few quid, if you are any way competent....

Welcome to OOF, by the way!!  

[Tony H]

The Miggy is not really noted as being very quick off the mark its a heavy car at 1.7 tons, you will notice better pull at mid range with the multi ram system.one thing is that once they have got going they just keep pulling

[DavidC]

Hi,

Thanks for the replies  

I agree it is a heavy car, I just upgraded from an auto 850 T5 which was a lump.

There is something def wrong, it is a dog under 4k but once it is there it goes like stink, I would say as good as the T5 if not better as it seems to have loads more torque.  

[hotel21]

4k rev slow?  Sounds like multirams....

[markey mark]

check all vac pipes as well matey there is a guide in maintance section !!

[hotel21]

check all vac pipes as well matey there is a guide in maintance section !!

already posted to the thread...  

[TheBoy]

Knock sensor, drivers side. Won't run to well with that error!

Look for damage to cable.

[DavidC]

Where abouts is the knock sensor, i read it is at the back of the engine?  Do I need to remove anything to access it?

Thanks!

[TheBoy]

Where abouts is the knock sensor, i read it is at the back of the engine?  Do I need to remove anything to access it?

Thanks!

behind alternator, cable comes up and over alternator, and plugs in around cable try on front of cambelt cover

[DavidC]

Cheers, i'll check it tomorrow morning.  Just been out in it, funny how many people panic when they see a white omega at night lol

[davlad22]

If it's also got the management light on, it might be in 'limp' mode thus restricting performance.

....and tell your brother he bought the wrong car!  

[DavidC]

Lol for £725 you can't go wrong plus my brother in law is a Vauxhall Mechanic, he'll be getting it once I have finished playing  

[luv_my_mv6]

My ex-plod 3.0 manual mv6 is like cr*ap in first gear (max 10mphh) but in second gear I have managed nearly 75mph at thre rev limiter, well, if indeed it has a rev limiter, it was at 7Krpm and still pulling but for fear of blowing the engine I changed to 3rd - im completly dumbfounded with my ex-plod as im sure you are..... if engine management light is on do the paperclip test