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Q's. Moving GIAC chip to "new" ECU.

1.3K views 9 replies 4 participants last post by  mghunt  
#1 ·
I've suspected that some of the pads on my current chipped PCB are lifting where the header pins are soldered to the board. (long story).

Anyway, I bought a replacement ECU from a member here. Now I need to desolder the factory chip on it and install some header pins for my GIAC. Does anyone know where I can buy header pins that are the same pitch as the socket on a GIAC socketed chip?

Another question? The ECU I bought is for an automatic car. If I desolder the chip and install my GIAC on it, do I still have to reprogram the ECU as a manual?

Thanks.

-Mark
 
#2 ·
did you try to drive with the new ECU first? i'd suggest clearing the codes, putting a hundred miles on it and checking to see if any codes come up first before you spend the time soldering the new chip on. Also, why not have a GIAC dealer solder it on for ya? it costs some, but i'd go that route unless you absolutely know what you're doing as you chould damage the ECU and/or the chip
 
#3 ·
D.Passat00 said:
did you try to drive with the new ECU first? i'd suggest clearing the codes, putting a hundred miles on it and checking to see if any codes come up first before you spend the time soldering the new chip on. Also, why not have a GIAC dealer solder it on for ya? it costs some, but i'd go that route unless you absolutely know what you're doing as you chould damage the ECU and/or the chip
Because paying someone else to do it doesn't go along with the B5 DIY mentality. ;)

I was just wondering if anyone has a supplier, or part number for the necessary headers. I guess I'll just take my socketed chip to an electronics parts supplier and get help there.

-Mark
 
#9 ·
BTW, I opened up my old ECU and found that one of the pads under a header pin was wiggling on the surface of the PCB. I metered it and measured an open. Under a scope I could see that the pin/pad combo was wiggling so I'm assuming that the pad has lifted off the surface of the board creating an intermittant connection. I tried reflowing the solder and it didn't help. To fix the issue, I soldered a jumper wire from the pin/pad to the PCB trace's destination. I'm hoping this will fix my chipped ECU. I've been living with 7psi of boost for too long. :(

-Mark