that one LOOKS like it could work. there does seem to be Rx and Tx pins that could be used for the ALDL end, but i'm not 100% certain of it. you would need to tie them together before the ALDL M pin obviously, then assuming there is a ground pin, and that's all the connections necessary.
i don't know why everybody doesn't just buy them from the link i posted, unless you want a potentially more stable supplier?
1995 Chevrolet Monte Carlo LS 3100 + 4T60E
Sparkfun is about 45 minutes from my house. They allow online ordering and onsite pickup. :DOriginally Posted by RobertISaar
For $20, I think it's worth a shot. Thank you!
EDIT: Part is on order. For the minimal shipping charge, I'll just let USPS deliver it! It would cost me twice as much to DRIVE down there! LOL!
I'll update what happens when it arrives. Hopefully I won't let the smoke out!
Last edited by FSJ Guy; 04-06-2012 at 08:09 PM. Reason: Update
Familiar with 1227747 and 16197427 PCMs
Here is the one i bought from amazon.i have not been able to try it with an ECM yet but it talks to my garmin gps.
http://www.amazon.com/UART-Module-Se...=pd_ys_iyr_img
the pins necessary are present, however it's a CP2102 IC, which isn't quite as capable as the FT232RL, so it MAY work, but i wouldn't gaurantee it.
1995 Chevrolet Monte Carlo LS 3100 + 4T60E
ok so this can be used to make a cable that will datalog for cheaper than the 59 bucks for a cable. i am not an electrical genious here. can someone show me how to make it aor what all i need to make it work. a diagram of sort.
with the one i posted:
connect the RXD and TXD pins together(solder would be my method), then connect that circuit to the ALDL pin M, then connect the ground pin on the converter to the ground pin in the ALDL connector (pin A).
it's that simple.
1995 Chevrolet Monte Carlo LS 3100 + 4T60E
i will get a buddy of mine to look at this tomorrow. he is all about electric. he is trying to set up a miata with a/c drive motors right now. thanks buddy.
To easy! Does it work? Still to easy... and to cheap...
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
What do you do with pin B on the ALDL connector?
Just to confirm the unbelievable simplicity to making this aldl cable, Hopefully a small image with red circles will help anyone else with the same question!
aldlcircuit.jpg
Solder the Rxd and Txd together, solder single wire from that to communication pin on Diagnostic plug.
Then solder wire from Gnd to ground pin on plug.
And obviously keep the bridge over VCC and 5V or solder together if intending to keep it like that.
That about cover it for 8192 baud communication?
Still cant believe aldl cable can be made for ~$20!. Paid $80 for my last one!
I am at this point and when I attempt to connect, the icon at the bottom of TunerPro that says "connecting" lights up but never connects.. Am I doing something wrong now?
That's for the 8192-baud ECU, right? What about 160-baud?
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