thanks,
I followed your linkk which took me to ebay . I emailed the guys at Inmotion tuning austria & they kindly sent me the instructions in English... But, they talk about delsoldering the existing chip & then resoldering the new one.
This isnt the same as you described, have you got the product name & supplier of your chip??
cheers
what they sent follows for your info.
"Installation Instruction
1. With the ignition turned off take the Bosch ECU out of your vehicle. Open it with a T15-Torx screw driver .
2. Lay the ECU on your workbench so that the black Multi-Pin-Connector is not facing you.
3. On the upper side of the circuit board you will find a chip (Eprom) identical to your tuning chip. In case of doubts just count the pins of the chip. The chip you are going to replace has 22 pins on both sides and the type is identical to your tuning chip (29f400 or 29f800)
4. Mark pin 1 of the original chip with a dark pen to avoid wrong polarity when inserting the new chip. Note that the position of pin 1 can be recognised by a small cut-out point.
5. Now unsolder the original chip. Make sure that all the factory solder connections are undone before removing the chip carefully from the board.
6. Clean off any flux or other impurities the board with a special circuit board cleaner.
7. Now insert the tuning chip on the circuit board exactly on the solder connections. Make sure the chip is in the same position as the original chip. It is absolutely essential that Pin 1 is in the correct position!
8. Re-solder carefully your tuning chip (or the optional socket). Use flux and solder tip to fix the chip on the circuit board.
9. Close the ECU and put it back into the vehicle. The vehicle is operable immediately after the installation.
Attention
Soldering as described should only be done by an experienced person. Take note that INMOTION Tuning does not take any responsibility in case of damage caused by improper handling"
