PLX SM-AFR Serial upgrade

[ntae]

Hi jez came up to mackay for the weekend and we worked out what parts & pids are needed for a PLX SM-AFR to output serial data in to your V2 cable & in passthrough mode

3 wire is all the is needed in side the SM-AFR and a serial cable with a RJ12 crimped on

the parts are off ebay it took just over a week to get to OZ

http://cgi.ebay.ca/ws/eBayISAPI.dll?...m=160220472353






Geoff

[TNT76]

Just modded my PLX also for serial coms. Works great.

[JezzaB]

Certainly made my life sooo much easier after I did it. Couldnt go back to analog now.

Jez

[MICK]

Thanks Guys the pictures answered all my questions.

Nice work!

Mick

[Mr. P.]

Hi, I'm only half-following here - what's the purpose of doing this? Are you monitoring the WB with a PC via serial???

Mr. P.

[JezzaB]

Hi, I'm only half-following here - what's the purpose of doing this? Are you monitoring the WB with a PC via serial???

Mr. P.

The V2 unit has a RS232 serial interface. Instead of logging with analog where alot of us are getting voltage offsets and its throwing the AFRs out. You connect the PLX to the V2 so you get a pure signal from the PLX as the PLX see's it, straight to the V2.

Nice accurate AFR readings

Jez

PS The TTL converter board is a 3-5v board, so if you tap the regulated power to the PIC chip inside the PLX, it supplies a nice and stable 3.54v (red wire) to power it.

[joecar]

Allows V2 to read the AFR from the wideband in digital form (i.e. what the wideband's controller says it is).

Nice work you guys...

[Chalky]

For the technically challenged, after adding the three wires, where would I find the cable for the serial adapter to the V2?

[MICK]

I purchased everything I needed to make a plx cable from jay-car.

6 x RJ12 plugs for $1.80 (This was the smallest quantity).
1 meter flat stranded 6 core wire cable $0.90.
1 x D9 shell $1.80.
1 x D9 plug $1.20.

I lashed out...LOL

[Blacky]

For the technically challenged, after adding the three wires, where would I find the cable for the serial adapter to the V2?

The serial cable ships with FlashScan. It has an RJ12 plug on one end to fit into FlashScan and a 9 pin serial plug on the other end.

Regards
Paul