PLX SM-AFR Serial upgrade

[aaronr]

What size wire did you guys use? Can make the wires a least 2' long or is there a distend requirement?

[nonnieselman]

whats the leatest on this guys?

i just bought a PLX and would like to do this so i can start tuning my new cam/turbo/meth setup..

[SS2win]

This thread is the latest.

I did the mod today and it was a breeze. Relocated the two components to make room and mounted the db9/max232 adapter to the back panel. used the cable that shipped with V2, cut the DB9 end off and replaced it with a male gender Db9. wired it so there's no need for a null modem (connected red to 2, black to 3 and white to 5) then configured v2 so it sees the WBO2 on the RJ12 jack. it worked the first try and couldn't have been easier! well, until they ship a TTL converter in the PLX. lol

[Tre-Cool]

Hey Guys, thought i would post up a pic of the guts of the M300 Tuner edition.

It's basically a normal PLX with an extra card for the display and fuel selection switch, funnily enough it only uses Power,Ground & the TX feed the same as the rs232 to ttl.

So use the pictures to enable serial output with your rs232 to ttl converters.

[nonnieselman]

Can somebody give a parts list of whats needed and where to get it. Ive never done anything like this so im kinda leary of ordering something that i dont know about..

Thanks guys..
Jonathan

[Tre-Cool]

Well i ordered the rs232 board from here. http://www.nkcelectronics.com/rs232-...33v232335.html

then use a gender bender and cut my efilive cable to modify the pins. But if you used a null-modem adapter you wouldnt need to cut the cable.

then i use the old Analog cable that used to plug into computer cd-rom drives (it's a 4 pin adapter) and then use that on to my board.

[SUPERTRUCKER]

Can someone give me a part list of what I need to do this and what the parts look like so I order the correct parts. Thanks Thomas

[Tre-Cool]

save your time and money and go buy another wideband.

If got issues with all 4 of my plx's being out for afr.

[TommyGloves]

I'm not an EFILive user (I use HPT and DHP Powrtuner for GM 3800s) but I found this thread useful so I thought I'd share. I have 2 PLX SM-AFR units modded the same way and they work great. I recently (9/9/10) purchased a M-300TE and it has a new version of the display board v1.1. Makes hookup even easier.

Pre-mod


Post-mod

[joecar]

TG, thanks for sharing