I own a '90 Legacy AWD 5-speed with 310K miles on it. About six months ago the Check Engine light lit up on the dash. I read the codes (11, 13, 24, 31, etc) and tried to make sense of the. I disconnected the battery for an hour, and when I reconnected the light came on again with the same codes set. I went looking for the ECU, but have not found it. I wanted to check it with another ECU. Any ideas out there?

Legacies are the first of the Newer Gen cars, so this really belongs in the other forum.

 

But nonetheless, you already know how to pull the codes. I'm not exactly sure, but these cars are known for having one sensor go bad, then angering the other sensors and making them throw codes too.

 

Join us over on http://bbs.legacycentral.org and continue the discussion there. Then you'll have a whole bunch more people to help.