Hi,
I just replaced the O2 sensor on my = 84 1.9L.  Disappointingly, the red warning light still stays = ON.
Following the Bentley instruction, to = reset the Control Unit memory ( I assume this is the same infamous ECU = which everyone is talking about), I first disconnected the sensor, then = started the engine; then reconnected the sensor.  The stubborn Red = Warning Light remains ON.  Hmmmm!

FYI, I do not have the expensive CO = meter to that the Bentley book always refer. 
Any suggestion?
Thanks for your help!

Andrew Pham
Aurora Biosciences Corp.
11010 Torreyana Rd
San Diego, CA 92121
619-404-6614
619-404-6726 fax
phama@aurorabio.com