NEW 2009 Euro Luxury Auto Pinging

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Originally Posted by primetimex

While on the subject of fuel economy and capacity of CU2 - does anyone here notice that the car is a lot more sluggish and heavy on a full tank of fuel? Once the fuel runs down and especially towards half full and less, the car becomes more "livelier" to drive and does not feel so heavy?

As for the pinging problem, I only hear it every now and then and most of the time I don't hear it when I have the stereo on.

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I notice no difference in the performance of my CU2 cold or hot, that being said, i Never exceed 3,000RPM within the first 10km of a cold start as that is the absolute worst thing you can do to an engine.

Obviously a car will perform fractionally better with less weight on board, be it people, luggage or weight of fuel on board. But with fuel alone there should only be a very slight difference between a full and near empty tank - consider that 1 ltr of petrol weighs .83kg, so a full tank (65 lts) = 54kg. not enough to make a huge difference at all.

I am taking my 6 speed manual CU2 Euro from Melbourne to the border early next week. It will be mostly on the Hume so I will post up what sort of figures I get. I doubt that I will ever be able to touch the figures Buddah gets unless I get out and push.

Why not? I was able to get the following in my CL9. I posted this in another thread.

http://i635.photobucket.com/albums/u...609_114302.jpg

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Originally Posted by unity

Why not? I was able to get the following in my CL9. I posted this in another thread.

http://i635.photobucket.com/albums/u...609_114302.jpg

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LOL, for 106.3 km everyone can get 5.4l AVG

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Originally Posted by BatRambo

LOL, for 106.3 km everyone can get 5.4l AVG

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Well that was on Melbourne freeways and that was the extent of my joryney. If I did the same journey 10 times as a continuous round trip the total trip would equate to 1060 kms. Would I expect the 5.4L/100kms to change that much? As far as I know the CL9 is not even rated at 5.4 for highway driving.
It just goes to show anything is possible.

STEVEH lives in Scoresby and probably only a few minutes away from Eastlink. Basically once on Eastlink he will be able to take freeways all the way to The Hume freeway, and with his journey comprising mostly of freeway driving there is no reason why he can't get figures similar to Buddah51 (just under 7L/100km). Also his car is manual too.

Next time you do a 100+ km trip on one of your freeways in Sydney then post your results.

5.4 for extended highway driving is not unrealistic for me, my only question would be is the CL9 trip Computer out by a similar margin to the CU2? If that is the case add approx 0.3 - 0.4 to the figure displayed. I have seen an indicated 6.1 over a short trip of 80km 0n flat highway running & it was still dropping when I got home.

The drive I intend to do 1 day, for those of you that know the road, 1s the Leighardt Hwy - Newell Hwy to Moree, then via Gunnedah to Willow Tree (that is the junction with the New England hwy). that is a journey of approx 1200km, on roads that are generally as flat as a billiard table with long distances between towns. It was using this route that i achieved 5.8 (actual) out of my FD1. Present indications point to the CU2 using 0.5 l/100 more than the FD1, so i can see a figure of around 6.3 from the CU2. If that were the case, the trip computer would be reading around 5.8.

But until i do the trip it is pure speculation, but quite feasible.

In reality, the economy from any 1 given trip only shows the potential of what the car is capable of, that's why i spend a couple of minutes after each fill up & update my spreadsheet. Therefore I always have a true & accurate log of all fuel used, and more importantly a true overall average fuel consumption over the life of the car.

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Originally Posted by buddah51au

5.4 for extended highway driving is not unrealistic for me, my only question would be is the CL9 trip Computer out by a similar margin to the CU2? If that is the case add approx 0.3 - 0.4 to the figure displayed. I have seen an indicated 6.1 over a short trip of 80km 0n flat highway running & it was still dropping when I got home.

The drive I intend to do 1 day, for those of you that know the road, 1s the Leighardt Hwy - Newell Hwy to Moree, then via Gunnedah to Willow Tree (that is the junction with the New England hwy). that is a journey of approx 1200km, on roads that are generally as flat as a billiard table with long distances between towns. It was using this route that i achieved 5.8 (actual) out of my FD1. Present indications point to the CU2 using 0.5 l/100 more than the FD1, so i can see a figure of around 6.3 from the CU2. If that were the case, the trip computer would be reading around 5.8.

But until i do the trip it is pure speculation, but quite feasable.

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I have no doubt that there is some degree of error with the trip computer on any car. I rarely ever make a trip on the freeway so I thought it would be interesting to see what sort of economy I got. Anyway this basically highlights that you can get excellent economy even in an automatic.

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Originally Posted by buddah51au

I notice no difference in the performance of my CU2 cold or hot, that being said, i Never exceed 3,000RPM within the first 10km of a cold start as that is the absolute worst thing you can do to an engine.

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Thanks for the feedback buddah, I'll continue monitoring and see how it goes with this CU2 sluggishness.

Also noted is don't exceed 3000RPM while cold (which I never do anyway), it is a good point.

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Originally Posted by primetimex

Thanks for the feedback buddah, I'll continue monitoring and see how it goes with this CU2 sluggishness.

Also noted is don't exceed 3000RPM while cold (which I never do anyway), it is a good point.

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ty for the feedback

I had an interesting discussion with my local Honda dealer this morning who indicated to me that he has had no news or technical bulletin regarding a fix for the post detonation "pinging" sound.

I also went on to mention my theory that the possibility of incorporating the exhaust manifold within the cyl head, along with raising the compression ratio, which in turn increases heat within the cyl head could have something to do with the problem. It was quite a lengthy discussion & quite technical & I sent him a pic of the rear of the cyl head to help outline my theory. Here is the reply email I received after he spoke of my views with ??????.

"Thanks John.
Checking over the parts catalogue, I can see the shape on the rear side of the head, which is true to your photo.
Per say your theorem is right, I think it may take a while for a fix, as re-developing a cylinder head would take time!
But yes, higher compression, higher temps, and the great Australian level of fuels, it all makes sense.
Think I’ll leave that to the boys at Honda Factory though
Cheers."

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Originally Posted by buddah51au

I had an interesting discussion with my local Honda dealer this morning who indicated to me that he has had no news or technical bulletin regarding a fix for the post detonation "pinging" sound.

I also went on to mention my theory that the possibility of incorporating the exhaust manifold within the cyl head, along with raising the compression ratio, which in turn increases heat within the cyl head could have something to do with the problem. It was quite a lengthy discussion & quite technical & I sent him a pic of the rear of the cyl head to help outline my theory. Here is the reply email I received after he spoke of my views with ??????.

"Thanks John.
Checking over the parts catalogue, I can see the shape on the rear side of the head, which is true to your photo.
Per say your theorem is right, I think it may take a while for a fix, as re-developing a cylinder head would take time!
But yes, higher compression, higher temps, and the great Australian level of fuels, it all makes sense.
Think I’ll leave that to the boys at Honda Factory though
Cheers."

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Nice going Buddah! :thumbsup:

I also contacted my local Honda dealer today and was advised no fix is available at this stage, he mention that Honda had applied the fix to a car in Canberra (Vidseuro I assume). :)

Keep up the feedback lads!

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Originally Posted by Joystick

Nice going Buddah! :thumbsup:
I also contacted my local Honda dealer today and was advised no fix is available at this stage, he mention that Honda had applied the fix to a car in Canberra (Vidseuro I assume). :)
Keep up the feedback lads!

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Gday Guys
Maybe my car was just a guinea pig for Honda.
If the (fix) computer correction was rolled out to all affected euros
and it didnt achieve the desired result it would be a warm pile of
corporate crap for Honda, these guys are being strategic about the whole thing...
I said to them i would report back in 1 month as my euro
computer has to learn to stop pinging...
You have to be aware this is being handled with caution, as it stands
HA has numerous customers upset, angry, confused...
Anyhow im gonna say give em a fair go and lets see what happens from here on.
I must say im hearing less of the ping now, but its the higher rev range when you start to push the car through the gears thts what im interested in.

I wish all my fellow pingers all the best, as a side point i think the euro
has the nicest rear end of most mid sized sedans
:cool: