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ECU question. Are these 2 traces supposed to be connected? Pics

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jredgo1234

15+ Year Contributor
130
1
Mar 10, 2006
Crestwood, Kentucky
I have an ecu that doesn't work well. The car will start but stutter and i get a cel. I was wondering if a short would be the cause of the problem. The previous owner of this ecu replaced the caps, but on one of the caps the solder touches the solder of another part of the board. As you can see in the pic, one terminal of the cap is connecting with another part of the circuit board (i don't know what that big this is called). Would this be causing my problem?
 

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I have an ecu that doesn't work well. The car will start but stutter and i get a cel. I was wondering if a short would be the cause of the problem. The previous owner of this ecu replaced the caps, but on one of the caps the solder touches the solder of another part of the board. As you can see in the pic, one terminal of the cap is connecting with another part of the circuit board (i don't know what that big this is called). Would this be causing my problem?

NOt a great pic. but anyway. THat isnt the cause if you will look at the under wide of the board they are connected anyway so the top conection will not hurt it, Not a ver good soldering job though. Hope that helps you figure out whats wrong. What CEL are you getting?
p.s. The big thing is a Diode.
 
Sorry about the pic it was the best i could do. The orange paint makes it clearer to you anyways. I know they both connect to 1 trace on the bottom side of the board but since it is a double sided board with different trace patterns on both sides, wouldn't them being connected on the top make a difference. I with i could see a picture of the traces on the top of the board where the solder is. I can't tell if it the sloppy solder is connecting 2 traces or it is all on 1 on the top side. Any more help would be appreciated.
 
Sorry about the pic it was the best i could do. The orange paint makes it clearer to you anyways. I know they both connect to 1 trace on the bottom side of the board but since it is a double sided board with different trace patterns on both sides, wouldn't them being connected on the top make a difference. I with i could see a picture of the traces on the top of the board where the solder is. I can't tell if it the sloppy solder is connecting 2 traces or it is all on 1 on the top side. Any more help would be appreciated.

If they are connectd on the bottom then the are technically connected at the top. I doest matter that the board is double sided. Most of the holes throught the board are just to conect the top side to the bottm anway. Look at it this way if you ran 2 regular wires through a board and tied them together at the bottom , when you measure them with a meter they are still connected at the top of the board.
 
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