ECU is in the driver compartment, behind a panel behind the passenger seat. There are about six capacitors that need replacing because they blow. Even if you think they look fine, they are so cheap and (if you can solder) easy to replace that it is stupid not to. This shows the location of the capacitors, you can read the specs on the side of each one (or an electrician can do this for you). https://www.goo-net.com/pit/shop/0123346/blog/36537
Stuei