IDM Modification problem

[JDH]

Went to perform the IDM mod today and experienced a problem with the factory resistor pulling loose the small square "pad" to which it was soldered. I used a 23 watt soldering iron and solder wick to remove the resistor in hopes of avoiding overheating the board. I can't seem to get solder to stick to the small tabs on the board and the original pad refuses to reattach. Anyone experience this problem? Any helpful advice is appreciated.

[dereku]

Dumb question but are you good at soldering?? I can solder wire but I would never solder on a board this important without testing on some junk board.

[JSchuricht]

What you need to do is find another place to attach to. Your going to need a good meeter with some sharp fine tipped probes. Hopefully you can see the traces and follow them to a point you can attach, but basically, you need to figure out where the traces lead from the old resistor solder pad and attach your new resistor somewhere in that circuit.

[JDH]

I am decent at soldering since we do it at work from time to time. Just suprised that the attachement plate came off the board so quickly/easily. Looking at soldering to the trace but it goes under an IC chip quickly after leaving the resistor.

[INTERNATIONAL7.3]

whats this mod supposed to do again? refresh me.

[JDH]

The mod should provide better idle and quicker throttle response or this is my understanding. I have been able to solder the resistor to the incoming trace but don't have a diagram/print to show where they terminate. Anyone have a diagram or know how the resistor is positioned in the circuit? The traces go under the chip beside it. REALLY need to know where the trace terminate so I can verify no cold solder joint exists. Thanks.