ALDL basics for a Dummy

[Holden202T]

try checking the com settings in windows ??

been a while since i've used winaldl memory is a bit sketchy :S

[VL400]

If its a circuit thats found online then it sometimes needs a 4k7 pullup resistor on the data line to get the PC serial port to recognise the data.

[v6bucket]

This is the circuit that I used, which is what delcowizzid posted on the first page.
160baud.JPG

[VL400]

Should be ok, check the transistor pins are wired correctly. The CEL will always flash with data when the 10k resistor is connected to the diagnostic request line.

[VNracer34G]

I still have fun and games sometimes getting my lappy reading. with all cables hooked up scroll through the com ports on winaldl till one says ok then shut winaldl down - this resets the comport next time you open it up then with the car turned on reopen winadl - sounds longwinded i know but it works for me

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if only i could keep it strapped in at the track

[Holden202T]

good to see you got it working!

[v6bucket]

I had another crack at logging with ALDL, still no luck, even made another cable to make sure.