Quote:
Originally Posted by Bob Kontak
Interesting.
My 81 US had an 089 on it and I replaced with a new 090 in about 2002.
Maybe it was the "hot" setup in the 80's to replace the 090 with the 089 given a touch richer.
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The 089 WUR is the ROW WUR and , unlike the US model, it controls your fuel AFR by vacuum. The internals are different...no idea how that translates to operation on a US model with an o2 sensor/brick under the passenger seat.