Soldering ECU Problems. Redlines at 3100. WTF ?

[JDMirza]

Okay, the car is a DA9.

- Replaced a JUN Aftermarket chip.
- Soldered in a JUN Chip, two chips were actually given when ordered.
- Installed/Soldered the Chips where they were suppose to go.
- Hooked up ecu and everything.

Now when I turned the car on it doesn't want to rev above 3,100 RPM. It just redlines at that.

[b17a1db2]

sounds like it is in limp mode meaning that something got messed up while soldering.. or everything is not making full connection.. how good are your soldering skills. i know my first ecu did the same thing. but now, i never have one fail on me..

[RBS]

hrmmm... did you do everything right? do you have pics of your soldering? gimme something that i can work with here lol :goodjob:

[b17a1db2]

hrmmm... did you do everything right? do you have pics of your soldering? gimme something that i can work with here lol :goodjob:

yeah, what i was thinking. it's easily possible he could of ripped a track out on the board.. that's what happened to me on my first ecu experiment.

[SleeperWRX]

yeah, what i was thinking. it's easily possible he could of ripped a track out on the board.. that's what happened to me on my first ecu experiment.

whats a track ?

[b17a1db2]

whats a track ?

thats what i call the soldering point. around it is some metal film. i cant explain it too good. but when thats ripped out theres no connection.

[RBS]

whats a track ?

ummm when your looking at a circuitboard.. its those silver goldish lines that go everywhere, just think of them as wires inside the board