Might sound daft but where in the exhaust should the Lambda sensor be? All running problems point to the sensor needing replacing but I can't find it although I have managed to buy a new one.
I'm amazed a 1997 car has a 4A engine in it, despite how advanced it was when it was designed in the early 80s...
I wouldn't be, my 20v 'blacktop' 4age has one. Currently it's in a box awaiting fixture to my aw11 downpipe. All I can confirm is it fits after the manifold.