At 08:08 PM 09/10/2003, you wrote:

>So... check those solder joints carefully  - I don't know how I missed this
>the first time.

Use a 10x hand glass to see many cracks otherwise unseen. Note that heat
stress is many times caused by resistance far elsewhere in the circuit,
like a corroded ground wire terminal. Many new ECU's get fried in short
time by the short elsewhere that is the root of the failure.