Welcome to the basement.
Drag you up a chair. No, I can't help that the card table smells like gas and oil. The only rule here. Guns on safety at the table.
This thread is gonna be about re-programming the ECM of a car. Specifically a 1994 GM, OBD-1 . The information crosses over to most electronically controlled motors. Be it Ford or Dodge.
Theres not that much deference between the engine controls, sensors, how they programmed it to run among car makers. From Kia to toyota to BMW.
My experience level at this is Zero. Before its all said and done. Anybody following along will learn what I do.
Ill be using TunerCat OBD-1 pro tune. Datamaster logging.
Heres the cables needed to interface with the cars ECM.
The entry point. The cars Diagnostic port.
Im using a beater lap top. If you think about it. This lap top is futuristic compared to a 1994 ecm.
For referance. This is the ECM. This case contains a small mother board. Processor. By todays automotive standards its a Casio calculator wrist watch. Remember those dorky things?
Next Ill post screen shots of the program. What things it reads, what it can change or not.
The big thing to remember. A person can physically blow up the motor if certain things are changed too far. Or changed at all from the factory tune.
I hope folks get alot enjoyment out of this. If youre a computer nerd but have no idea when it comes to cars. This is gonna surprise you. Stick around. Your skills will come in handy. Even more handy if your good at algebra.
"Sent from a puff of smoke"
Drag you up a chair. No, I can't help that the card table smells like gas and oil. The only rule here. Guns on safety at the table.
This thread is gonna be about re-programming the ECM of a car. Specifically a 1994 GM, OBD-1 . The information crosses over to most electronically controlled motors. Be it Ford or Dodge.
Theres not that much deference between the engine controls, sensors, how they programmed it to run among car makers. From Kia to toyota to BMW.
My experience level at this is Zero. Before its all said and done. Anybody following along will learn what I do.
Ill be using TunerCat OBD-1 pro tune. Datamaster logging.
Heres the cables needed to interface with the cars ECM.
![68d98975aa7ba0cace4c1f815a470762.jpg](/proxy.php?image=http%3A%2F%2Ftapatalk.imageshack.com%2Fv2%2F15%2F02%2F15%2F68d98975aa7ba0cace4c1f815a470762.jpg&hash=7fa8fe24c8cf89930672cc8762f86190)
The entry point. The cars Diagnostic port.
![3bff27f3b10ca41359b88ee284b243b9.jpg](/proxy.php?image=http%3A%2F%2Ftapatalk.imageshack.com%2Fv2%2F15%2F02%2F15%2F3bff27f3b10ca41359b88ee284b243b9.jpg&hash=1f453afcce19b1957a2c4d40ddc000b4)
Im using a beater lap top. If you think about it. This lap top is futuristic compared to a 1994 ecm.
![cf25f9c70c82f0a6b8e149d7963dc75c.jpg](/proxy.php?image=http%3A%2F%2Ftapatalk.imageshack.com%2Fv2%2F15%2F02%2F15%2Fcf25f9c70c82f0a6b8e149d7963dc75c.jpg&hash=54ae5416cd93631c267d187f15dba8dd)
For referance. This is the ECM. This case contains a small mother board. Processor. By todays automotive standards its a Casio calculator wrist watch. Remember those dorky things?
![b11f54c7cef46909e9c84468e20df201.jpg](/proxy.php?image=http%3A%2F%2Ftapatalk.imageshack.com%2Fv2%2F15%2F02%2F15%2Fb11f54c7cef46909e9c84468e20df201.jpg&hash=dfd6ce77bf66f55ec919cab71ca822ba)
Next Ill post screen shots of the program. What things it reads, what it can change or not.
The big thing to remember. A person can physically blow up the motor if certain things are changed too far. Or changed at all from the factory tune.
I hope folks get alot enjoyment out of this. If youre a computer nerd but have no idea when it comes to cars. This is gonna surprise you. Stick around. Your skills will come in handy. Even more handy if your good at algebra.
"Sent from a puff of smoke"
Last edited: