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Pedal Faster
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2,658 Posts
Discussion Starter #1
Well you learn something new every day.

Putting my '90 Bird back on the road with its original 3.8, picked up the ECM, MAF, and wiring harnesses from a '91 car to do a MAF conversion in the process (my '90 harnesses were gone). Though I had it all ready to go and lo-and-behold, the O2 sensors are different.

Aside from the plug, what's the difference between the pre- and post-'91 O2 sensors? (On the plus side, O2s be damned, I got the ol' girl fired after five years sitting dormant.)
 
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