1996 mustang, replaced upstream 02 sensors and I had a hell of a time to start, once it is running it stumbles heavy while trying to bring revs up.
WTF....
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1996 mustang, replaced upstream 02 sensors and I had a hell of a time to start, once it is running it stumbles heavy while trying to bring revs up.
WTF....
Disconnected the battery for 25min and seems to be fine now... strange
that's good...I was going to suggest maybe the sensor was no good to begin with perhaps...
While it's not common it can happen when you change any sensor until the ECM sorta refinds it's way, similar to how it can run funky after just battery disconnected or gone flat.