Hi All,
I am new to this so pls bear with me. My 96 E320 failed the CA smog test due to "not ready" status for Catalyst, Evaporative Sys, Sec Air Sys, O2 sensor, O2 sensor heater and EGR system dispite passing the emission portion of the test. Is the problem with the Diagnostic Module or the ECU. Your help will be greatly appreciated. Many thanks.