NEW 2009 Euro Luxury Auto Pinging

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Originally Posted by yfin

Bob - be careful comparing dyno numbers even for the same car. I have seen a Euro on the same dyno on the same day deliver 20kw more at the wheels. This was 2 manual CL9s.

And fuel economy at 13l per 100kms is less than what Wheels was getting for real world driving in the automatic CL9. They were getting 14s around town. Is the car with the fuel economy issue an automatic? As those numbers are not that unusual. What does the car do on the highway?

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Dyno's regularly deliver different results due to ambient temperature, humidity and other factors.

As for fuel economy i can only post my own accurate figures, there are so many variables, the biggest being the human that is driving.

I have a CU2 Auto and keep a spreadsheet on all fuel used, 99% of the time I fill at the same pump so the car is on the same angle, and fill until fuel is visible in the filler neck. After 10,955kms i have an average of 7.33 L/100km.
If I discount the first tank from the dealer ( i am sure it was not filled completely) best recorded is 6.9L/100km, worst recorded is 7.65L/100km.
Caltex Vortex 95 fuel used exclusively except for 1 tank of Mobile 98.

Hi all,
Sent my car in this morning for the "fix".
After the "fix", i tried to replicate the "pinging" sound on my way back(30 min drive). I am happy to say that i couldnt hear anything. Seems like they have found the fix.
I am going to observe for few more days. Will feedback here again. Stay tune...

Did the dealer give you any indication regarding what they did to your car? I live in the states and am very curious regarding what they actually did to eliminate the ping. This is potentially very exciting news!

notice any difference in power?

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Originally Posted by Bobjones

Subsequently, John has driven the vehicle maintaining extremely accurate log books for his vehicle, noting both the vehicle dispayed fuel economy and his calculated fuel economy, both of which did not differ materially. Over a couple of monthsJohn noticed no improvement in fuel economy figures, despite being an older gentleman whom drove the vehcile "like a grandma", economy in excess of 13 litres per 100km was consistently being recorded.
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Thus, as a former Euro owner, I would advise that it may be prudent for people to obtain independent testing on their Euro's, those with "post ignition noise" and those with poor fuel economy and see if there are any trends...IMHO I think there may be some...

Might also be an idea for those whom are having the "fix" performed on their vehciles, both, a pre and a post dyno run is not expensive...

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I have a 2008 build/compliance one... my fuel figures is around 13L/100kms but starting to get the noise as well... I dont think this has to do with fix or change in fuel consumption...

Did another run for an hour tis morning. Same like yesterday, couldn't hear any pinging sound, no matter what rev.
I did pay some attention to power and consumption. Didn't feel lost of power(can be subjective, need more time). Fuel consumption remain similar level for me, around 9L.
We need more owner to share their experience after the fix before we can conclude anything.

Yes I know dyno's give different readings, but like any dyno in shoot out mode, if callibrated correctly adjusts for temperature humidity etc, the tension straps are also set to the same torque figures to reduce the "ramp up" effect that can cause higheer power figures. And let me say that the AFR does not lie, there was a material difference in readings, power figures some, and if I saw the SAME car on the SAME dyno read different in a day by 20kw, in a NA car then yes, I would not believe the dyno was set up properly, the SAME dyno and different car, who knows...and frankly irrelevant to what I have provided. I have know buy in to this anymore, just providing information, that you can assess anyway you want.

Oh and Buddah, I said in excess of 13l per 100, combined highway and city, and driving it like Miss Daisy, my car was returning under 10 atleast with similar driving, significantly different from the reported 8.9...

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Originally Posted by Bobjones

Oh and Buddah, I said in excess of 13l per 100, combined highway and city, and driving it like Miss Daisy, my car was returning under 10 atleast with similar driving, significantly different from the reported 8.9...

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Mine was 20% highway 80% city, and its giving 13L/100kms avg... driving like "miss daisy" give me avg 13.5L/100kms and rev high early then glide through the rest give me avg 12.5L/100kms

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Originally Posted by Bobjones

Yes I know dyno's give different readings, but like any dyno in shoot out mode, if callibrated correctly adjusts for temperature humidity etc, the tension straps are also set to the same torque figures to reduce the "ramp up" effect that can cause higheer power figures. And let me say that the AFR does not lie, there was a material difference in readings, power figures some, and if I saw the SAME car on the SAME dyno read different in a day by 20kw, in a NA car then yes, I would not believe the dyno was set up properly, the SAME dyno and different car, who knows...and frankly irrelevant to what I have provided. I have know buy in to this anymore, just providing information, that you can assess anyway you want.

Oh and Buddah, I said in excess of 13l per 100, combined highway and city, and driving it like Miss Daisy, my car was returning under 10 atleast with similar driving, significantly different from the reported 8.9...

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Maybe your mate 'John' needs to unhook his caravan.;)

Seriously though I get low 7's highway and high 11's around home with lots of short trips to work and back. I can't see what changes Honda could have made that would reduce power and increase fuel consumption by 30%. Not to mention the regulatory problems those sort of performance changes would give them.

There are so many variables that effect fuel consumption you will never get 2 cars achieving the same results. In my case I achieve approx 1L/100km less than my wife in our car, yet I am the faster driver. therefore the way the right foot is used plays a major part in the end result. I had an FD1 Civic Auto for over 60,000km & averaged 6.8L/100 over that time. After 11,000 in my CU2 Auto I find it averages 0.5L/100km more..... who would have believed that, i know i wouldn't, yet keeping an accurate spreadsheet doesn't lie.

Sure, i know the figures i achieve are totally irrelevant to most of you guys as all my driving is secondary rural roads with a little country town driving thrown in, but it does show what is possible given the right conditions.

A classic example is a trip I did to Bundaberg today, a round trip of 360km. I had done 204km local driving before left with the trip computer reading 6.8. Upon arriving home i have done 564km & still have well over 1/2 a tank remaining, trip computer is showing 6.4. If I allow for the .2L/100km inaccuracy of the trip computer that would give a true reading of around 6.6. Who wouldn't be impressed with that, i know i am. Add to that the computer is also showing 520 till empty which would give a range of 1084 from 1 tank of fuel, meaning 1,000km should be easily achievable. I am 100% certain I will get past 900km on this tank with local driving until i refill.

I am happy to share my spreadsheet with anyone, just pm me your email add, but i wont be refilling on this current tank until next week at the earliest.

PS....I am now up to 879 km on this tank of fuel......still no sign of low fuel warning light......trip computer reading 176km till empty. AMAZING!

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Originally Posted by mcabut

Did the dealer give you any indication regarding what they did to your car? I live in the states and am very curious regarding what they actually did to eliminate the ping. This is potentially very exciting news!

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its a software patch and a knock sensor in australia i guess it would b the same anywhere else

I average around 8.0-9.5 here in Canberra including driving to work during peak hour. On a trip from Canberra to Sydney I was 6.4 there and back.

My ping is horrid and can be heard across the entire rev range and even when the radio is on. I think I've become highly attuned to the pinging sound now. :(

That being said I love the car and will hold off on the 'fix' until my 10k or 6 month service in September.

btw glad to see you back Buddah!