Just an update. I replaced the ECM. That took care of it.
Type: Posts; User: rickbaron
Just an update. I replaced the ECM. That took care of it.
I have a 91 Lesabre with 57,000 miles that flashes code 42, but it is intermittent. When I go to work in the morning, no check engine light, But when I start it to go home at night it will come on....