Lotus Sport ECU Upgrade Problems

<Archived> Even supercars have their flaws..
Snapper
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Re: Lotus Sport ECU Upgrade Problems

Post by Snapper » Sat Feb 24, 2007 7:49 pm

Snapper
=====

A BIG THANKS to Mr Demon/David for taking the time off today to take me for a ride in his Exige with the ECU Upgrade mixed with an ITG and a Sports Exhaust. Yes I did look under the boot cover to make sure that and ITG was fitted.

The good news is that as suspected the characteristics of the ECU Upgrade is the same on an Exige with ITG and a Sports Exhaust as it is on a Standard Setup Exige.

My findings are as follows:

There is a definite change in performance and sound at 5700-5800rpm on both cars. Maybe not as much as when it was at 6200rpm on a standard ECU, but not that far off. I would also say that the cars with the ECU upgrade seems to have a fraction more torque from 5600rpm which makes a very big difference when trying to keep the car on cam.

My view is that this ECU upgrade is worth the money and is a big improvement to the N/A Exige S2. But I am not convinced that the ECU that I have been sent is working correctly.

All this driving around the Midlands to look at different peoples cars ridicules the comments by Russell at Lotus Motor Sport, that the problem is the ITG. I have also had messages sent from others with the ECU upgrade and have ITG's fitted as well. They don't have problems ether.

If Russell�s comments are correct, which I suspect there are not.

It does beg the questions of if this is a true Lotus Motor Sport Upgrade and they know that induction kits are standard upgrades why is there no leeway for induction kits in the mapping if that is truly the issue, which I suspect it isn't. Or, Why they don't have a map for them if Lotus did the mapping.

I suspect that Lotus did not do the mapping and that is why Russell is just blaming the ITG because they don't sell it and they don't have any control over the mapping themselves. It is easy to just blame the induction kit than deal with the problems of an ECU that is not working correctly.

It may also explain why they don�t send out another ECU to test on the car seeing that I don�t get any real sensation or sound of second cam.

Now both cars, Alun�s & Dave�s are Black Exiges and mine is Magnetic Blues.

So when I go back to Russell (Or get my dealers to contact him) I will be waiting for the comment, �I would like you to try one more thing, can you just respray your car black and you should find that everything will be alright�, �If it isn�t we might deal with the issue�.

Thanks to everyone who has been so helpful in helping me get to the bottom of this problem. If only Lotus Motor Sport was as helpful and didn�t expect me to pay a dealership to do their leg work to try different options that should not and have been proved not to make any difference.

Badnis
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Re: Lotus Sport ECU Upgrade Problems

Post by Badnis » Wed Feb 28, 2007 10:23 am

Is the Lotus sport ECU fully type approved or is it just an aftermarket tweek? I would have thought that as long as it still passes an MOT then the plod would be happy so I dont understand why the modded ECU needs to retain the full OBD anyway?

Has anyone actually been told what the fault code is? They dont just appear by magic, there is a bunch of code in the ECU which defines the error which is then flagged up.

I've got all this blurb at home so if someone can give me the code (usually starts with a P) then I can tell you what its complaining about...

Snapper
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Re: Lotus Sport ECU Upgrade Problems

Post by Snapper » Fri Mar 02, 2007 7:21 pm

Well Lotus have sent back a standard ECU, a mechanic came around to the house to refit it and every thing seems to be working fine with out the engine warning light coming on from the test we have done so far.

I will take the car out again tomorrow to make sure everything is still working ok.

The dealers are have a bit of a problem in that they can not put the ecu on a standard car without any upgrades to check it out because they only have cars with a much newer ecu that has different connectors.

Surprise that Lotus Motorsport won't send out a different upgraded ECU to try out, seeing I know there are other S2 Exiges with the upgraded ECU & ITG Kits. When I know that they will work with the ITG system.

So I looks like I am going to have to wait for a while longer to get this sorted out. Just glad that the dealer has the patience to stick with it to try and sort things out.

Badnis
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Re: Lotus Sport ECU Upgrade Problems

Post by Badnis » Fri Mar 02, 2007 8:14 pm

I'm tempted to offer to come over and be a genuiea pig??

Snapper
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Re: Lotus Sport ECU Upgrade Problems

Post by Snapper » Sat Mar 03, 2007 6:50 pm

Bob, From the rides in other peoples cars I would say this ECU upgrade is a must have item.

You are more than welcome to give Ian Garrett a call at Nick Whale to test it out, If it works on your car due to it being a standard set up. It would possibly be the only time they will have one on the shelf. Plus it would rule in or out my cars set up.

Which would help me out if it is the ECU at fault.

But it is a long way to go without knowing if it is going to work for you to try it out. Mind you it may have stored a certain amount self learning from my cars set up.

Well with the STANDARD ECU REFITTED I took the Exige for a proper test drive today, every thing worked perfectly and there was no Errors at all coming from the standard ECU.

So I know that my car is fine And I know it's not knacked 02 sensors.

It might be a good while before the Dealers have a car to test the Upgraded ECU out on to prove that it is the ECU at fault. I don't see why Lotus Motor sport didn't just send out another upgraded ECU to test out which I think will solve every thing. But there you go.

Snapper
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Re: Lotus Sport ECU Upgrade Problems

Post by Snapper » Fri Mar 09, 2007 3:41 pm

Well had some good news today. The dealers took in an Elise S2 111r that had the same ECU connecters as my car and they had a chance to put the Lotus Motorsport ECU on the car to check it out with a standard set up. (IE no ITG or sports Exhaust)

The feedback has been that there is no second cam at all and the car has no performance gain at the earlier cam change point of 5700 rpm or the original 6200 rpm.

So it has been a duff ECU all along.

I am only glad that the deal has didn�t have to remove my ITG or sports Exhaust and fit the standard kit back on only to change it back again.

Lotus Motorsport are now sending out a replacement ECU, which they should have done in the start.

A Big Thanks to my dealers, Nick Whale for sticking with it and getting to the bottom of the problem while being so helpful.

Hate to say it, I knew I was right.... and Russell was wrong

AndyD
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Re: Lotus Sport ECU Upgrade Problems

Post by AndyD » Fri Mar 09, 2007 3:59 pm

Good news - Ian is a really top bloke ..

Mr Pesky
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Re: Lotus Sport ECU Upgrade Problems

Post by Mr Pesky » Fri Mar 09, 2007 4:16 pm

That's very good news, Snapper

SteveJ
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Re: Lotus Sport ECU Upgrade Problems

Post by SteveJ » Fri Mar 09, 2007 5:43 pm

Just shows the difference between a good dealer and a poor dealer, is the people working there.

PeterField
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Re: Lotus Sport ECU Upgrade Problems

Post by PeterField » Fri Mar 09, 2007 7:52 pm

Glad to hear you/they have finally got to the bottom of it Jamie.

Well done too NW to for persevering with this on your behalf.

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