Received the relay with Friday's mail and soldered it onto board that afternoon. (Soldering is so much easier than de-soldering!) Thanks again tighed1.

Have driven ~120 miles since installing it and no CEL yet! On Saturday I did a highway run up to SF of 90 miles round trip. Not sure how many miles need to be driven before declaring success.

One concern: while sitting at a stop light on 19th Ave in SF I did hear some motor(?) cycle on and off a few times.