Hopefully this is helpful to some of you. Ta-da! You can now get on with programing, datalogging, or whenever you need to do.

When plugged into the car, an led on the board will start flashing, indicating it is talking. Should you choose to go with a cheap one, you may want to find version 24 and turn off automatic updates on the driver.Īt this point, you should see a COM port appear on the Device Manager tab when you plug your cable in. Note, some claim counterfeit chips will self destruct with the updated driver. Make sure you download the proper driver from FTDI. You can use a paper clip, hardwire it, or cut up a cheap 12 pin obdI harness. *NOTE: Do not try to solder to the pins in the board. This cable is for 19 OBD1 cars equipped with the 16 pin OBD2 style connector (Camaros, Firebirds, Corvettes, and LT1 equipped cars are a few), and has a 16 pin OBD2 connector shell to plug in under your cars dash to interface to your cars ECM/PCM. FOR SALE For more than 100 years, Delphi has focused on providing. ALDL (GM OBD1) Cable with 16-pin Connector in Automotive. Some lower cost ones are knock offs, and people have experienced issues with them.Ĭonnect the RXD and TXD wires together, and wire it to Pin M on the above diagram. DELPHI GM OBD II OBD2 Serial Port Connector ALDL Data Link DLC Repair Kit ODB2 - 11.48. Anyway.Īlso it is to the best of my knowledge, a genuine FTDI Chip. It did strangely work with Scan9495, never figured out why tunercat did not work with it. I purchased one with a FT232BL chip, which is square, and it did not play well with TunerCat. If you followed the link, you may have noticed that the board has a black, rectangular chip on it. it is easy to wire, has a protective case, and is on Amazon prime, so it comes quickly, as opposed to many of the cheaper ones you will find coming from China and abroad. What we are looking for is an FT232RL chipset. If you aren't sure, count the pins under the dash.Įssentially, what you have to do is convert the serial data coming out of your obd port to something your computer can read through it's usb port.įTDI is one of the most popular companies making these converters. Note that 94/95 cars should be a 12 pin OBD connector. I had to put pressure on the adapter to make it connect to the computer, and after bricking a PCM as a result, I decided to make my own.įirst, this is the post I referenced. My cable, which I had for many years from Red Devil River, started acting up a few months ago. If both tool and cable are suitable then the next hurdle would be whether the Esprit is supported. I am not a electronics expert, and I assume I am not in the minority here. Regarding your original query it depends on whether the diagnostic tool / software is capable of ALDL diagnostics (some of the professional tools are) and how the ALDL to OBD-II cable is wired. There has been other threads here, on the Impala SS forum, and other corners of the web, but I wanted to pull some of that info together, and share my experience.

Aldl adapter to obd2 serial cable