Originally posted by Robert S:
Last week I finally changed the O2 on my 95 gl. Car starts up nice, doesn't sound like it's gonna die, and no CEL so far. But last night I was driving around and it was running hotter than normal. Usually the needle stays at M unless It's summer and the ac is on in bumper to bumper. Last night though it was on the L, and it was like 50 degrees outside.




Have you reset the ecu ? Maybe it still compensates for
the old (degraded) o2 sensor.

Someone will correct me if I'm wrong but I think both
prolonged rich or lean condition causes the engine
running hotter than normal.

Tiv