Mems3 mapping

cavaddict · Post by **cavaddict** » Sun Aug 02, 2015 10:10 am

Yes, but the principal is the same.

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talkingcars · Post by **talkingcars** » Sun Aug 02, 2015 12:22 pm

cavaddict · Post by **cavaddict** » Sun Aug 02, 2015 5:28 pm

Exactly. Now you're catching on!

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talkingcars · Post by **talkingcars** » Sun Aug 02, 2015 6:02 pm

cavaddict · Post by **cavaddict** » Sun Aug 02, 2015 8:23 pm

Or......you could just make a mountain out of a mole hill.
I'll try and make this as simple as I can.
If you put the cars VIN into the ecu that is in the car, if it gets stolen and the oik grinds the VIN off of the car body.....there is a record of it in the ecu so it can be returned to the owner.
So, like I said, when the Vectra was mapped, this was done. Exactly the same as the MG mems 3 ecu.
It really is that simple. No tea, coffee or lemonade.....just a security measure.

Post by **Rob Bell** » Wed Aug 05, 2015 10:47 am

Interesting thread, thanks! Coming to this a bit late, but nothing much to add... other than to note that not all MEMS3 are exactly the same. MEMS3 destined for VVC, Steptronic or a turbo have additional hardware drivers (on the VVC for example to actuate the VVC hydraulic control unit, or on the turbo, the waste gate). MEMS3 for MPi engines with manual gearboxes do away with this additional complexity.

Therefore a VVC MEMS3 can be loaded with a 135 Map and run the engine entirely satisfactorily. Vice versa is not quite possible.

Unfortunately, at this present time, I don't think that MEMS/ Pektron SCU matching is possible on the pscan, but it is possible for MEMS 1.9/2J/3 and Lucas 5AS SCU. I'd be happy to assist if the latter, but we'd need to engage Philip's services to try and sort out the former.

But since Mark's remap is such a lovely thing, I think the option you've taken is certainly the best Steve!

cavaddict · Post by **cavaddict** » Wed Aug 05, 2015 11:27 am

Thanks for the offer Rob. Took the Z&F route and glad I did. The engine now runs a lot smoother and you can certainly feel the extra power. Apparently also, you get 10% better fuel consumption too.....although as I only did 40 miles last year, I don't think this will save me a bundle!!

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Post by **Rob Bell** » Wed Aug 05, 2015 11:43 am

I thought you'd be pleased with it Steve

Now you need to do some more miles on that car

cavaddict · Post by **cavaddict** » Wed Aug 05, 2015 11:28 pm

I wonder why ' talkingcrap' has deleted all his posts?!

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technozen · Post by **technozen** » Thu Aug 06, 2015 1:51 am

The pscan tool works fine for matching the engine ECU to the Pektron SCU.

Remember, the learning process is done via the engine ECU, it is told to learn the immobiliser code being presented to it.

In this regard it is dumb, it just needs the code to be in the correct format, it doesn't matter if the code is coming from a 5AS, 10AS, SCU or even a PIC processor loaded with a very simple program.

I recently matched a MEMS2J ECU to a Land Rover Freelander 27VT BCU, a combination that didn't exist ex-factory, the VVC engine had originally been in a Rover 200vi with a 5AS alarm ECU, the
engine ECU accepted the code without any problems.

Post by **Rob Bell** » Thu Aug 06, 2015 8:08 am

Thanks for that confirmation Paul

cavaddict · Post by **cavaddict** » Thu Aug 06, 2015 2:19 pm

What's this pscan thingy? Take it its some sort of scanner for MGs, but it's not one I've heard of before.

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technozen · Post by **technozen** » Thu Aug 06, 2015 3:52 pm

It's a nice piece of kit....

http://www.pscan.eu/

talkingcars · Post by **talkingcars** » Thu Aug 06, 2015 7:26 pm

cavaddict wrote:I wonder why ' talkingcrap' has deleted all his posts?!

because I was talking crap, you see, I don't know much about Vauxhalls and haven't driven any since my dads 1.6 Cavalier 20 years ago.

But you've done me a favour, I shall save my breath and let those who do know about MGs do the posting.

talkingcars · Post by **talkingcars** » Thu Aug 06, 2015 7:29 pm

cavaddict wrote:What's this pscan thingy? Take it its some sort of scanner for MGs, but it's not one I've heard of before.

but you weren't interested when I mentioned it!
Oh, sorry, I forgot, that's because I talk crap.

cavaddict · Post by **cavaddict** » Thu Aug 06, 2015 8:28 pm

Priceless!! Talkingcrap! Predictive text really is the best!

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cavaddict · Post by **cavaddict** » Thu Aug 06, 2015 8:32 pm

Anyhow......passed the MOT today. Took it for a spin after and the stainless exhaust sounds excellent.

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talkingcars · Post by **talkingcars** » Thu Aug 06, 2015 8:55 pm

cavaddict wrote:Priceless!! Talkingcrap! Predictive text really is the best!

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Jeeze, this makes the previous post even worse..........

cavaddict · Post by **cavaddict** » Thu Aug 06, 2015 9:20 pm

talkingcars wrote:
cavaddict wrote:I wonder why ' talkingcrap' has deleted all his posts?!
because I was talking crap, you see, I don't know much about Vauxhalls and haven't driven any since my dads 1.6 Cavalier 20 years ago.

But you've done me a favour, I shall save my breath and let those who do know about MGs do the posting.

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