Lanos 1.6 (VEMS and turbo on the way)

[rob@vems.co.uk]

Yes the injector grounds are vital, make sure that you read the UserGuide's grounding information, especially this diagram:


The factory ECU Grounds should be sufficient in number to connect all of your standard ECU grounds to the common grounding point.

[bob3825]

so I should follow this diagram and ignore the other one where there is a 6mm2 wire from the common point to the block or head and everything will work fine?

[rob@vems.co.uk]

I am guessing that you are splicing into the original loom.  If so you need to use the factory grounds.

If you're making your own loom then stick to the common point to the block or head.

[bob3825]

yeah i'm splicing into the factory loom and i'm trying to keep it as factory as possible
as for the factory sensor grounds, do they go to the common point or between pin26 and the common point, because in the factory ecu i have some sensors grounded together in one wire at the ecu, i know i asked a lot about grounds but i see everywhere how important they are and i want them perfect, if you want i can give you a link to the factory ecu diagram to see all the connections

[rob@vems.co.uk]

yeah i'm splicing into the factory loom and i'm trying to keep it as factory as possible
as for the factory sensor grounds, do they go to the common point or between pin26 and the common point, because in the factory ecu i have some sensors grounded together in one wire at the ecu, i know i asked a lot about grounds but i see everywhere how important they are and i want them perfect, if you want i can give you a link to the factory ecu diagram to see all the connections

Put all the factory grounds into the common point.

[bob3825]

If i do that then i won't have any sensor grounds, since i'm keeping the factory wiring, so is this right or will there be high noise?

it will be more like this

[rob@vems.co.uk]

I thought you said that you have a sensor ground in the factory wiring though?

[bob3825]

yes but what i meant is that if i connect all the factory ground to the common point then all the sensor grounds will be in those factory grounds at the common point not as your diagram, here is a link to the factory ecu diagram so you can see it clearly, its only a bit over 500kb

http://rapidshare.com/files/187981381/ECM_Wiring.pdf

[rob@vems.co.uk]

To Common Ground point.
A12
D1
C12
C13

To Sensor Grounds:
A11
D2

[bob3825]

Can't thank you enough rob

[bob3825]

A new problem for today 

I have this strange wideband O2, its a bosch LSU 4.2 and has a code of 0258007206 and it has a different connector than the one in the webshop so i have to slice the wires manually
i know how its supposed to be connected but i have a heater + and - while the diagram has only 1 heater input and pump + and - so i'm a bit confused here

[Bat]

Hi,
I looked into using different LSU 4s with VEMs as I could get one cheaper elsewhere. They're not interchangeable as far as I could work out. They have a different chemical make up and therefore react differently.
On the other hand you may just need to ground the heater- to get it working?
Cheers,
Gavin

[bob3825]

Well i have the plx devices sm-afr so it comes with its own controller and its working perfectly now, if this sensor won't work with VEMS then i'll look into just connecting the wideband output from the controller to the VEMS unit, i don't know why i always get to work with the hardest and most annoying versions of everything

[rob@vems.co.uk]

See if you can use any of the information here:
http://www.vems.hu/wiki/index.php?page=WideBand

[bob3825]

It turned out i have that special type of sensor used by MOTEC and i only have to color match the wires apparently from that link

here is quote and if i got it wrong please tell me

{
Here is a link about the pinout of the WBO2 sensor with the little connector. Theese sensors used by MOTEC.

    * [drawing for the \"6066\"] sensor that only differs from our standard type in the connector (straight, 1x6 instead of the U-shape 2x3). Colors match (Bosch was consistent)
}