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Old 07-10-2018, 10:25 AM
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Readiness for Emissions

I've been reading all over the place, with 2:15 of warm up time, drive for "x" amount of time and speed, blah blah,blah.
I have no faults and can't get my secondary air system to ready and one O2 monitor to get ready. I reset the truck with Rheingold about 1000 km ago and can't get it to get the last 2 to get ready.
Help!!!
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Old 07-10-2018, 11:02 AM
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Which O2 sensor? I'm having they same problem but it's the heater circuit.

Is your sap running for 90 seconds at startup and is the sap valve operating?
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Old 07-10-2018, 11:35 AM
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Quote:
Originally Posted by dadysev View Post
I've been reading all over the place, with 2:15 of warm up time, drive for "x" amount of time and speed, blah blah,blah.
I have no faults and can't get my secondary air system to ready and one O2 monitor to get ready. I reset the truck with Rheingold about 1000 km ago and can't get it to get the last 2 to get ready.
Help!!!
The blah, blah, blah...is critical. There is a specific drive cycle where FOUR criteria MUST BE performed to test all system to make them "ready".


In the chart below...you will see all FOUR criteria that must be accomplished (on the top half of the chart)....and what is typed on the lower half of the chart is the part of the emissions system that is being tested.

Unfortunately by the number of times it is asked...you do NOT have to follow each in the exact time limit. If you do the 1st step but it takes you longer to get to a stretch of road to perform the 2nd or 3rd step etc...then just make sure you do NOT go over the speed and RPM limit (given in the chart) and when you get to a stretch of road that allows you to perform the other 3 test...do so (following the criteria outlined in the chart):


  • FTP Drive Cycle = the criteria covered in the chart below which when carried out will fulfill the OBD Readiness criteria
  • Customer Drive Cycle = any driving event by the driver which may or may not fulfill "all" of the OBD FTP drive cycle criteria (usually not)

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Last edited by Qsilver7; 07-10-2018 at 11:41 AM.
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Old 07-10-2018, 01:03 PM
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Quote:
Originally Posted by andrewwynn View Post
Which O2 sensor? I'm having they same problem but it's the heater circuit.

Is your sap running for 90 seconds at startup and is the sap valve operating?
SAP runs every morning for the 90 seconds.

My O2 monitoring is stuck not ready, but my heater circuit is ready.
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Old 07-10-2018, 01:03 PM
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Quote:
Originally Posted by Qsilver7 View Post
The blah, blah, blah...is critical. There is a specific drive cycle where FOUR criteria MUST BE performed to test all system to make them "ready".


In the chart below...you will see all FOUR criteria that must be accomplished (on the top half of the chart)....and what is typed on the lower half of the chart is the part of the emissions system that is being tested.

Unfortunately by the number of times it is asked...you do NOT have to follow each in the exact time limit. If you do the 1st step but it takes you longer to get to a stretch of road to perform the 2nd or 3rd step etc...then just make sure you do NOT go over the speed and RPM limit (given in the chart) and when you get to a stretch of road that allows you to perform the other 3 test...do so (following the criteria outlined in the chart):


  • FTP Drive Cycle = the criteria covered in the chart below which when carried out will fulfill the OBD Readiness criteria
  • Customer Drive Cycle = any driving event by the driver which may or may not fulfill "all" of the OBD FTP drive cycle criteria (usually not)

Thanks. I tried to follow this. but like you said I may have to do it a few drive cycles.
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