DLP A/D to log boost? - Factory R32 GTR sensor?

[Shaun]

Hi guys,

Looking to add boost logging via my DLP A/D converter on an aux channel.

My R32 GTR has the factory sender mounted on the firewall, but I can't find any useful information on it. there isn't even a sticker or stamped part number or manufacturer on my unit. Perhaps the label has fallen off...

Anyway, was wondering if anyone's got one of these working with with the DLP A/D, or has a spec sheet, part number or some other info that I may be able to use to dig up some specs. If we're lucky and its a 0-5v sensor output, it'll be easy with just an op-amp. If its a 0-12v, wont be too hard either, but will need a voltage divider too.
If I get this going, I'm happy to share circuit diagrams, or even do a limited run of adaptors if there is enough interest.

Alternatively, can anyone recommend a sensor to use?
I found PLX do a $99USD (plus shipping of about $60 last time i ordered from them) unit that has a 0-5v output.
http://www.plxdevices.com/sensormodules.html

Cheers!
-Shaun

[Matt]

Lot cheaper device would be this:

viewtopic.php?f=18&t=1866

MPX4250D Integrated Pressure Sensor. I've got this wired into my DLP as LHS inputs and using the Innovate LC-1 on the RHS for AFR at the moment

If you can get a wideband unit which does Aux also (like the SLC PurePlus unit I have in the R34 also for example) then the one unit can do AFR and boost

[Shaun]

Thanks Matt, looks good... I'll get hold of one of them.

Cheers!
-Shaun

[skylinegtrhr]

Lot cheaper device would be this:

viewtopic.php?f=18&t=1866

MPX4250D Integrated Pressure Sensor. I've got this wired into my DLP as LHS inputs and using the Innovate LC-1 on the RHS for AFR at the moment

If you can get a wideband unit which does Aux also (like the SLC PurePlus unit I have in the R34 also for example) then the one unit can do AFR and boost

From where did You get yours as I see there is lot of Chinese copies so I would like to buy from reliable source?

[Shaun]

From where did You get yours as I see there is lot of Chinese copies so I would like to buy from reliable source?

I just ordered 2x MPX4250GP from freescale.com if thats what you mean... they are 'commercial samples'

$10 handling fee, but for what you get its pretty damn good


Cheers!
-Shaun