Trying to repair my ECU.
This isn't an A body but it's still mopar.
So last Friday I found (what seemed like) a great deal on one of my dream cars, a Viper GTS! I looked at it and decided to buy it knowing it had a misfire and ran rough. It's pretty clean for its age and only has 34k miles. It had the original plugs, wires, belt, etc. I did a complete tune up on it and it runs MUCH better now. However the misfire is still present. I have a P0201 code which translates to cylinder 1 injector circuit. I tested the injector, checked wiring, etc. It all pinpointed to the ECU. So I called around and a refurbished one is only $1999.00...
I don't really have the spare cash for that at the moment. So I opened up the ECU and traced the circuit and found the transistor (I think) is shorted out. I scraped off the silicon and it's very obvious that its burnt. Its a surface mount and would be pretty simple to replace IF i had a replacement. I scraped the silicon off of a couple other matching transistors to get the numbers. The board is made by motorola and looks like they have the Motorola M and R7N L3055 on them.
Ive done a decent amount of soldering before and feel confident enough to do it. But I'm not sure where to get parts and how to choose the correct ones. I know one of you FABO guys will know where to find a suitable replacement.
This isn't an A body but it's still mopar.
So last Friday I found (what seemed like) a great deal on one of my dream cars, a Viper GTS! I looked at it and decided to buy it knowing it had a misfire and ran rough. It's pretty clean for its age and only has 34k miles. It had the original plugs, wires, belt, etc. I did a complete tune up on it and it runs MUCH better now. However the misfire is still present. I have a P0201 code which translates to cylinder 1 injector circuit. I tested the injector, checked wiring, etc. It all pinpointed to the ECU. So I called around and a refurbished one is only $1999.00...
I don't really have the spare cash for that at the moment. So I opened up the ECU and traced the circuit and found the transistor (I think) is shorted out. I scraped off the silicon and it's very obvious that its burnt. Its a surface mount and would be pretty simple to replace IF i had a replacement. I scraped the silicon off of a couple other matching transistors to get the numbers. The board is made by motorola and looks like they have the Motorola M and R7N L3055 on them.
Ive done a decent amount of soldering before and feel confident enough to do it. But I'm not sure where to get parts and how to choose the correct ones. I know one of you FABO guys will know where to find a suitable replacement.
