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Old 10-19-2018, 06:19 PM   #1 (permalink)
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Default catalyst not ready on monitor

Hi. Can someone help me what i can do to fix may Catalyst Monitor to be ready cause i can't pass my SMOG due to this problem. i already run my car 150 miles as the technician told me but still not lucky to have my monitor ready.
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Old 10-19-2018, 07:26 PM   #2 (permalink)
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Old 10-19-2018, 07:36 PM   #3 (permalink)
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Quote:
Originally Posted by itzjaycool View Post
Hi. Can someone help me what i can do to fix may Catalyst Monitor to be ready cause i can't pass my SMOG due to this problem. i already run my car 150 miles as the technician told me but still not lucky to have my monitor ready.
this need a description as to make model year and engine.

Usual causes of not setting monitors are not having gas level between 1/4 and 3/4 tank, leaking gas cap and stored codes.

Check no stored codes, check live data from O2 sensors to ensure they are working correctly and make sure fuel is between 1/4 and 3/4 tank, over or under this fuel level and drive monitor won't set.
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Old 10-19-2018, 10:18 PM   #4 (permalink)
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i have 2007 suzuki reno. all monitors are ready MIS,FUEL,CCM,EVAP,AIR,O2S,HTR,EGR but the CAT still not ready. O2SB1S1 voltage is good ranging 0.010v-0.900 vice versa and the 02SB1S2 voltage is good, stayed on perfect range.
what i want to know is do i have a special procedure to trigger the ECM for the CATALYTIC MONITOR to be ready?
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Old 10-19-2018, 10:38 PM   #5 (permalink)
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Originally Posted by itzjaycool View Post
i have 2007 suzuki reno. all monitors are ready MIS,FUEL,CCM,EVAP,AIR,O2S,HTR,EGR but the CAT still not ready. O2SB1S1 voltage is good ranging 0.010v-0.900 vice versa and the 02SB1S2 voltage is good, stayed on perfect range.
what i want to know is do i have a special procedure to trigger the ECM for the CATALYTIC MONITOR to be ready?
but are the sensors tracking each other? Cat not ready indicates the upstream and downstream aren't tracking each other, indicating a damaged or non working cat. When were the O2 sensors replaced last? is it actually going into closed loop? You need to confirm sensors are actually correct before looking at a possible faulty cat
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Old 10-19-2018, 11:07 PM   #6 (permalink)
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hi 2013GV
i've just changed my downstream sensor its brand new, my upstream sensor was changed 6months ago. i don't have graph live data to see there tracking each other.
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Old 10-20-2018, 12:11 AM   #7 (permalink)
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hi 2013GV
i've just changed my downstream sensor its brand new, my upstream sensor was changed 6months ago. i don't have graph live data to see there tracking each other.
You will need someone to drive it with a live data scan running to look at what things are doing. Its about the only way to determine what component is faulty.

it could be a damaged CAT, but before shelling out money for that item, you need to prove whats stopping it from setting the monitor.
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