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    EGR will help reduce NOx emissions a bit. But the...

    EGR will help reduce NOx emissions a bit. But the pre cat mainly assists during the warm-up from cold start. Any time you emissions check, you want the car running at normal operating temps, and the...
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    The OBD1 system doesn't have a very robust...

    The OBD1 system doesn't have a very robust monitoring system.

    O2s in particular will just misreport readings, affecting air fuel ratio most of the time without triggering a code.

    In...
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    1,476

    Are you on facebook? Join the "MX-3.com" group....

    Are you on facebook? Join the "MX-3.com" group. the online website forums are quite inactive.

    If you haven't already, consider ordering parts from Rockauto.com
    They're often the most affordable...
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