by Tea cups » Tue Aug 15, 2006 3:10 pm
You've read this part?
"Troubleshooting:
Cannot flash or read your ECU:
1. Try a different port in the "Options" menu of Ecuflash.
2. Do not turn on your ignition until prompted to do so, otherwise reading/flashing may fail.
3. Make sure the openport cable is securely connected to both your car and the laptop.
4. Make sure you car is actually entering diagnostics mode. With the green diagnostics connectors connected and the openport cable disconnected, you should get a flashing CEL and the radiator fans should cycle on and off (after a period of time) when the ignition is turned on. If not, your car may have an additional connection near the passenger’s side footwell that is disconnected. When reading and flashing, the radiator fans will typically remain off.
5. Make sure your battery, charging and electrical system are up to snuff.
6. Although the flash blocks are not needed for reading, some cars may not read without them."