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Author Topic: Live data on a 3.2  (Read 188 times)

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Ulap31

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Live data on a 3.2
« on: 07 September 2019, 17:56:21 »

Hi all, still having problems with an omega 3.2 2002 reg auto.
My previous posts show the problems and parts that have been replaced.
The car seems fine at idle although fuel consumption shows 18 mpg. When it's in drive it sounds rough on the passenger side. I have live data but not sure how to post it on here.
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Ulap31

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tunnie

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Re: Live data on a 3.2
« Reply #2 on: 07 September 2019, 21:04:02 »

You want to read the codes instead  :y
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Nick W

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Re: Live data on a 3.2
« Reply #3 on: 08 September 2019, 08:10:50 »

You want to read the codes instead  :y


That's just a start.
Live the data is the way to diagnose why the codes are listed.
But the same bit of kit will do both.
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Ulap31

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Re: Live data on a 3.2
« Reply #4 on: 08 September 2019, 08:46:56 »

There are no error codes since the last time. Well since 2 of the lambda sensors were changed.
Compression tests were fine since head gaskets changed.
MPG is not what you’d expect at 18 mpg.
Have checked timing belt with cam locking kit and that is spot on.
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Nick W

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Re: Live data on a 3.2
« Reply #5 on: 08 September 2019, 12:09:40 »

There are no error codes since the last time. Well since 2 of the lambda sensors were changed.
Compression tests were fine since head gaskets changed.
MPG is not what you’d expect at 18 mpg.
Have checked timing belt with cam locking kit and that is spot on.


That's a good start.
How good are your coil packs/spark plugs?
While you're extracting those, have a proper look for air leaks in the intake, but particularly the plenum/manifold joints.
When was the thermostat replaced? It's a pain to do, so is one of the few cases it's worth spending £15 on a new one and fitting it. Actually, with such poor economy this ought to be first in the list.
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Re: Live data on a 3.2
« Reply #6 on: 08 September 2019, 13:03:47 »

 Do a complete check of all the connections, as Nick said check for leaks, especially plenum to inlets, the O rings could have moved,  also coolent temp sensor,, Alternatively book it in to Serek.. :y
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Ulap31

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Re: Live data on a 3.2
« Reply #7 on: 08 September 2019, 17:28:34 »

Thanks for replies.
The cars had new Bosch coil packs, genuine spark plugs and a new thermostat when the head gaskets were replaced. Could this be exhaust sensor issue or maybe the cats, the sensors were moved to stop the eml light coming on.
I had to replace a pre cat and after cat sensor with original ones as they were damaged when being removed.
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Nick W

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Re: Live data on a 3.2
« Reply #8 on: 08 September 2019, 17:39:31 »

It could be any of those things.


But it is MUCH more likely to be something that didn't go right when the work was done - a dislodged manifold gasket is a real possibility. The rule for this sort of fault finding is always to go back over what has just been done. It's time to start taking it apart again.
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