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Hi all - esp Guilt toy , I need to connect a Tech edge WB3A2 to my Datalogit so that it can log AFR as well as the usual things .

Guilt Toy , since you have (had anyway) a 3A2 and a Datalogit , do I connect the WB+ (4th from the LHS of the Y5 10 hole connector) to AN1 on the Datalogit and WB- to AN2 ?

From what I can tell the WB+ means WB lin+ and the WB lin- is it's ground return .

I printed out TE's info on the WB3A2 and it shows the default linear voltage scale as 0-5v - 9-19:1 AFR .

Once the figures are set in the Datalogit logging page and Delta AN1-AN2 selected it should all work ?

Cheers and thanks , A .

In time I'd like to be able log purely from the Tech Edge and I suppose to do so means tapping into the sensor wires near the EMS's ECU plug .

The reason being that it's simpler/easier to leave out the lap top and not everything is going to have a PFC/Datalogit .

Hi all - esp Guilt toy , I need to connect a Tech edge WB3A2 to my Datalogit so that it can log AFR as well as the usual things .

Guilt Toy , since you have (had anyway) a 3A2 and a Datalogit , do I connect the WB+ (4th from the LHS of the Y5 10 hole connector) to AN1 on the Datalogit and WB- to AN2 ?

From what I can tell the WB+ means WB lin+ and the WB lin- is it's ground return .

I printed out TE's info on the WB3A2 and it shows the default linear voltage scale as 0-5v - 9-19:1 AFR .

Once the figures are set in the Datalogit logging page and Delta AN1-AN2 selected it should all work ?

Cheers and thanks , A .

In time I'd like to be able log purely from the Tech Edge and I suppose to do so means tapping into the sensor wires near the EMS's ECU plug .

The reason being that it's simpler/easier to leave out the lap top and not everything is going to have a PFC/Datalogit .

Hey mate you got it right. You connect AN1 to wb+ and an2 to wb-

Then you need to pull your tech edge box appart, and take off the jumper 4.

Look here, and follow instuctions for the subject "WBlin Ground Jumper [J4]"

http://wbo2.com/3a1/default.htm

you got my number, phone me if you are stuck

----cut from site----- (go to site for pics)

WBlin Ground Jumper [J4]

This shunt controls the WBlin+ output's reference input (WBlin-). This topic is discussed here. It is important to note that incorrectly setting this jumper can result in either:

Excessive WBlin+ noise (mostly heater switching transients at 30 Hz) on WBlin+ (with shunt installed = ON when it should be OFF and WBlin- goes to the input amp's GND).

floating WBlin+ output that can exceed 5 Volts or go below 0 Volts (shunt is OFF when WBlin- is left floating).

Note that the effect of the J4 shunt can be reproduced by wiring WBlin- & GND together with a short piece of wire. This obviates opening the case to access J4

---------------------------

Ok so removing jumper J4 the bridge is removed between WB lin- and the ground pin and this makes the Tech Edge ground through the Dataligit via AN2 .

One more silly one , is there any special wire needed or basically any suitably sized insulated automotive type wire ?

Cheers A .

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