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high nox

  1. 164 & 168 (1991-1995)
    Fellow sufferers: I am once again tested to the limit by my Alfa. I had failed smog a year ago and have since done extensive work, including: - R&R engine, replace all seals and gaskets, incl head gasket - install new Catalytic from Centerline - new oxygen sensor, generic, from Autozone...