MGF VVC MEMS 2 CODE READ

[rehtnap]

HI
does anyone know if uniscan/visa can read /clear fault codes on the mems 2 ecu fitted to 1997 mgf. i can read and clear codes on the ordinary mems 1.9 mgf with visa but now need to read a vvc model and that has mems 2. :top:

[nicole99wu]

yes, it works on cars up to 2000

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tried it on mgf mems 1.9 and connects but when its tried on same year mgf vvc which is mems 2 it will not connect. the application chart does say rover mems but i think its only 1.9 for visa 1.83

[nicole99wu]

well...it may not support 2.0
and sorry for not familiar with diagnostic tool for mg, or you may ask gtmech or someone else by pm

[ashyt16]

HI
does anyone know if uniscan/visa can read /clear fault codes on the mems 2 ecu fitted to 1997 mgf. i can read and clear codes on the ordinary mems 1.9 mgf with visa but now need to read a vvc model and that has mems 2. :top:

Hi mate, where did you get your Uniscan from? I have had a massive headache trying to get a chinese copy working with MEMS 1.6. ECU wakes up but doesn't respond to the K-line so Visa just gives me 'NO RESPONSE FROM ECU'

Thanks.

[Meat-Head]

Hi mate, where did you get your Uniscan from? I have had a massive headache trying to get a chinese copy working with MEMS 1.6. ECU wakes up but doesn't respond to the K-line so Visa just gives me 'NO RESPONSE FROM ECU'

Thanks.


YO, welcome to DK - the worlds best website.

Do you have any more info on this tool and setup for fetish reasons?

Just check in device manager - (windows key and pause break) that you have no yello ticks

[ashyt16]

What sort of info? This tool works in DOS so as long as the com ports are ok it should work.
TBH I think it's a piece of crap chinese clone and doesn't work properly. Been trying to get it to work for 2 years off and on!
Tried it on 3 different cars and just gives me nothing.

[Meat-Head]

what sort of , info what ever you can.

OK, perhaps, for testing purposs, get your interface, and jamb a bit of wire into it with a led and 1k resistor - see if it's pulsing out.

Meat

[ashyt16]

what sort of , info what ever you can.

OK, perhaps, for testing purposs, get your interface, and jamb a bit of wire into it with a led and 1k resistor - see if it's pulsing out.

Meat

Ok thanks, will try this. Is this test on the car side of the pins on the interface?
I will take some pics of the inside of the interface. All I know is it uses an ATtiny 2313 microcontroller chip which I believe is not as good as the original Uniscan chip as it causes problems?

I am trying to make this work on a Rover 200 with MEMS 1.6 ECU. All is covered in Visa, but don't think the ECU even responds.

All I see is L-Line blinking then a quick blink of K-Line when Visa tries to connect to the ECU.

[rehtnap]

right
MEMS 1.6 uses ISO9141 with a K data line and an L wake up line, MEMS1.9 and 2J use a K data line only so you will have to use the uniscan. i ended up using a simple iso interface as only needed k line for the mgf.
my duff uniscan gave the same response as your getting. cant belive it from a reliable source like china lol lol and they all seem to be made there so it pot luck as to what you get
your better off building your own interface.

[ashyt16]

Is the K-Line and L-Line supposed to be at 14v the car side? Mine is and when Visa attempts to wake the ECU nothing changes voltage wise?