MPG Enhancement day!

dxb335d · 12-12-2007, 04:48 PM

Quote:

Originally Posted by Evil Diesel

An embarrasing conversation with the dealer will result. Simon was preparing himself to take it on the chin though - top bloke.

Oh well, all is well that ends well.

So what happens if my ECU goes down the swanny?! Simon foots the bill?

ShereKhan · 12-12-2007, 05:26 PM

Quote:

Originally Posted by dxb335d

So what happens if it does not load up? are you fucked?

Thanks for all the condolences guys.

I would have thought that the ECU should have two EPROM/ROM sections. I would expect the 2nd to contain the factory loaded version as ROM only

So if the working half dies then the limp home mode ECU is there. When back at the dealers the dealer simply loads back the EPROM section with the latest. Bit like some PC BIOS's. EPROM's can usually last 100,000 write cycles after that they are trash or can just die

dxb335d · 12-12-2007, 05:33 PM

Quote:

Originally Posted by ShereKhan

I would have thought that the ECU should have two EPROM/ROM sections. I would expect the 2nd to contain the factory loaded version as ROM only

So if the working half dies then the limp home mode ECU is there. When back at the dealers the dealer simply loads back the EPROM section with the latest. Bit like some PC BIOS's. EPROM's can usually last 100,000 write cycles after that they are trash or can just die

Would they not wonder where the other one has gone?

Evil Diesel · 12-13-2007, 02:45 AM

The ECU is unlikely to break from what Simon is doing.

The problem is that they are so temperamental to programme the dealer's inclination is to replace the unit rather than be exposed to continued upload issues. Also, BMW would use the OBD to programme and are unlikely to try the 'freezer mod'.

When things were getting a bit tricky on mine Simon did say not to worry as he would sort it out. As it happened I was fairly chilled out anyway (the freezing weather may have had something to do with it). If if failed after the freezer I may have started to get worried though ........

Oli · 12-13-2007, 02:58 AM

He did'nt use the freezer technique when he did mine, well I didnt see him do it anyway!

CrimsonRedE93 · 12-13-2007, 07:27 AM

I didnt mean to scare you Carlo's it was just an observation that it could go wrong, it does seem that Simon is a good bloke and would sort it out if anything untoward happend

Just really interested as I run a team of hardware/software engineers and we write lots of code with different communication protocols like CAN (used to talk between car electronics) and program lots of micro's etc.

Hotcoupe · 12-13-2007, 07:45 AM

Quote:

OliH He did use the freezer technique when he did mine, well I didnt see him do it anyway!

No problems with my upload,so my ECU does not smell of frozen chicken!
It apppears it has a later version of the software to Evil's as well,so it will be interesting to see how the car's compare on the dyno.

Evil Diesel · 12-13-2007, 07:50 AM

Ian - yours was an earlier ECU with later software.

I can't imagine that there will be anything in it on the rollers as we have both done sililar mileage. Of course my ECU did dine out on Bernard Matthews finest on Monday so you never know .....

dxb335d · 12-13-2007, 07:51 AM

Do you think once mine is done, i will have 10bhp more than you guys still or not?

Evil Diesel · 12-13-2007, 07:54 AM

No.

Between Ian and me we bunged Simon enough cash to keep you below 325 bhp. It was a donation to road safety ....

NFS · 12-13-2007, 07:54 AM

Quote:

Originally Posted by dxb335d

Do you think once mine is done, i will have 10bhp more than you guys still or not?

Cars with higher native BHP, tend to remap less well.

You will probably have less HP then when you started.

Oli · 12-13-2007, 07:59 AM

Quote:

Originally Posted by dxb335d

Do you think once mine is done, i will have 10bhp more than you guys still or not?

I hope so for your sake!

PS. Ive now amended my post above, which meant to say that Simon DIDNT freeze my ECU!!!

dxb335d · 12-13-2007, 08:01 AM

Quote:

Originally Posted by needforspeed

Cars with higher native BHP, tend to remap less well.

You will probably have less HP then when you started.

Simon didnt agree, he said that its a percentage increase, so therefore starting with more in theory i should end with more. Thats what the man said!

Hotcoupe · 12-13-2007, 08:07 AM

Quote:

Evil Diesel Ian - yours was an earlier ECU with later software.
I can't imagine that there will be anything in it on the rollers as we have both done sililar mileage. Of course my ECU did dine out on Bernard Matthews finest on Monday so you never know .....

Yes your right Tony (re -older ECU,newer software), it has started me thinking as to the story I was told by BMW when mine when tit's up 2 hrs after originally picking it up!
Looks like a bullshitter,shit a bullshitter,that worries me more!

Quote:

dxb335d Do you think once mine is done, i will have 10bhp more than you guys still or not?

A fanciful notion Carlos,live the dream,dream the fantasy

Quote:

Evil Diesel No.

Between Ian and me we bunged Simon enough cash to keep you below 325 bhp. It was a donation to road safety ....

It's strange how Simon was happy just to accept 50p from each of us

Quote:

needforspeed Quote:
Originally Posted by dxb335d
Do you think once mine is done, i will have 10bhp more than you guys still or not?
Cars with higher native BHP, tend to remap less well.
You will probably have less HP then when you started.

That's gonna cause Carlos some sleepless nights,I think the map gets better the lower the temperature of the freezer + add some alcohol to the ice cube tray.

Evil Diesel · 12-13-2007, 08:10 AM

Ahh - but my driving skill is worth another 20 bhp on its own.

12-13-2007, 02:45 AM	#48
Evil Diesel Captain 32 Rep 817 Posts Drives: E92 335d M Sport Join Date: Jul 2007 Location: London iTrader: (0)	The ECU is unlikely to break from what Simon is doing. The problem is that they are so temperamental to programme the dealer's inclination is to replace the unit rather than be exposed to continued upload issues. Also, BMW would use the OBD to programme and are unlikely to try the 'freezer mod'. When things were getting a bit tricky on mine Simon did say not to worry as he would sort it out. As it happened I was fairly chilled out anyway (the freezing weather may have had something to do with it). If if failed after the freezer I may have started to get worried though ........
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12-13-2007, 02:58 AM	#49
Oli Campervan man 94 Rep 2,667 Posts Drives: RS3 and VW Kombi Join Date: Mar 2007 Location: here, there, everywhere...... iTrader: (1)	He did'nt use the freezer technique when he did mine, well I didnt see him do it anyway! __________________ www.bmvs-camperhire.co.uk Genuine VW T5 California Rental Last edited by Oli; 12-13-2007 at 07:56 AM..
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12-13-2007, 07:27 AM	#50
CrimsonRedE93 Major 108 Rep 1,085 Posts Drives: Le Mans Blue E93 330d+ Join Date: Nov 2007 Location: West Sussex iTrader: (0) Garage List 2007 E93 320I SE [0.00]	I didnt mean to scare you Carlo's it was just an observation that it could go wrong, it does seem that Simon is a good bloke and would sort it out if anything untoward happend Just really interested as I run a team of hardware/software engineers and we write lots of code with different communication protocols like CAN (used to talk between car electronics) and program lots of micro's etc.
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12-13-2007, 07:50 AM	#52
Evil Diesel Captain 32 Rep 817 Posts Drives: E92 335d M Sport Join Date: Jul 2007 Location: London iTrader: (0)	Ian - yours was an earlier ECU with later software. I can't imagine that there will be anything in it on the rollers as we have both done sililar mileage. Of course my ECU did dine out on Bernard Matthews finest on Monday so you never know .....
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12-13-2007, 07:51 AM	#53
dxb335d The Tarmac Terrorist 949 Rep 29,345 Posts Drives: 997.2 GT3 Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [9.50] 2003 BMW E46 M3 [6.00] 2007 BMW E92 335D [5.50]	Do you think once mine is done, i will have 10bhp more than you guys still or not? __________________ 997.2 GT3
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12-13-2007, 07:54 AM	#54
Evil Diesel Captain 32 Rep 817 Posts Drives: E92 335d M Sport Join Date: Jul 2007 Location: London iTrader: (0)	No. Between Ian and me we bunged Simon enough cash to keep you below 325 bhp. It was a donation to road safety ....
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12-13-2007, 08:10 AM	#59
Evil Diesel Captain 32 Rep 817 Posts Drives: E92 335d M Sport Join Date: Jul 2007 Location: London iTrader: (0)	Ahh - but my driving skill is worth another 20 bhp on its own.
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