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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Jul-28-2013, 04:20:46 PM   #21
casper3t
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Default Re: Catalytic Not Ready

make sure your obd2 cover is closed too
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Old Thu, Aug-01-2013, 07:00:35 PM   #22
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Default Re: Catalytic Not Ready

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make sure your obd2 cover is closed too
Sorry, the what? You mean the diagnostic port? Does that matter? I had my OBD reader plugged in when I attempted the test the last time.

Do we know if the test restarts if you go above 60? Or do you actually have to stop the car, turn off the ignition and turn the car back on?
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Old Thu, Aug-01-2013, 08:30:24 PM   #23
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You need to do exactly what the procedure says to complete the codes. I did that with cover open. But I sure needed to redo when I passed 3k rpm or 60mph.

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Old Fri, Aug-02-2013, 03:31:13 PM   #24
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Default Re: Catalytic Not Ready

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You need to do exactly what the procedure says to complete the codes. I did that with cover open. But I sure needed to redo when I passed 3k rpm or 60mph.

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yeah that's not really possible where I am (location wise...I can't drive for 3 to 4 minutes at 30-35 mph)...

I heard you could do targeting testing since only the catalytic monitor is not ready. All of the other monitors are in the ready state.

I'm just wondering how you restart the test if you go over 60mph or 3k rpm. Or if that is even possible because you need to start with the car cold.
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Old Fri, Aug-02-2013, 07:50:45 PM   #25
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Default Re: Catalytic Not Ready

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yeah that's not really possible where I am (location wise...I can't drive for 3 to 4 minutes at 30-35 mph)...

I heard you could do targeting testing since only the catalytic monitor is not ready. All of the other monitors are in the ready state.

I'm just wondering how you restart the test if you go over 60mph or 3k rpm. Or if that is even possible because you need to start with the car cold.
You may be able to do the target test, there's a chart online somewhere that breaks down what each test period is for. If you need to restart the test, shut the car for a couple minutes, start it up and let it idle for the period listed then go test.
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Old Fri, Aug-02-2013, 08:26:46 PM   #26
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In all the tries I made I couldnt do target test. But yes. Just shut off for couple mins and retry. Find the country road on the map.

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Old Fri, Aug-02-2013, 09:07:27 PM   #27
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Umm, what tune do you have?
Is it by chance post cat O2 delete S/W that you may have had prior to getting your cats to keep your CEL off?
If it is that is your problem, by turning off rear O2s they are permanently set to (not ready)
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Old Fri, Aug-02-2013, 10:59:26 PM   #28
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Default Re: Catalytic Not Ready

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This true, I only wish TN was the same was as I have to have all monitors in the ready state. Anyhow, I cleared codes and drove 300 miles (hwy/city) and then went in for the emissions test and secondary air pump and cat monitors were both not in the ready state. I was able to get the cat monitor ready by driving at constant speed (between 50-60 mph) for 15 mins without going over 3K RPM's. This is somewhat difficult to accomplish as having to slow down due to traffic we throw things off. I accomplished this on my way to work (interstate commute of 25 miles) early in the morn (6am). Do this and your cat monitor will become ready.
I did this when I had to smog and it worked. Constant speed between 50-60 for 15minutes and without going over 3k RPM's. Use cruise control, best to do it when the freeways are open. Did mine at 11pm and all lanes were free and open and right away catalytic became "ready". I was in the slow lane and people entering the freeway were high-beaming/honking when the other 4 lanes were open
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Old Fri, Aug-02-2013, 11:07:32 PM   #29
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Default Re: Catalytic Not Ready

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Umm, what tune do you have?
Is it by chance post cat O2 delete S/W that you may have had prior to getting your cats to keep your CEL off?
If it is that is your problem, by turning off rear O2s they are permanently set to (not ready)
No tune...stock ECU.

No idea why the monitor isn't ready...I haven't changed the battery recently and the last time I reset the adaptations was well over a year ago. I guess I just drive all that often below 60mph and 3k RPM
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Old Fri, Aug-02-2013, 11:07:55 PM   #30
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Default Re: Catalytic Not Ready

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Originally Posted by Mike A View Post
I did this when I had to smog and it worked. Constant speed between 50-60 for 15minutes and without going over 3k RPM's. Use cruise control, best to do it when the freeways are open. Did mine at 11pm and all lanes were free and open and right away catalytic became "ready". I was in the slow lane and people entering the freeway were high-beaming/honking when the other 4 lanes were open
Thanks...definitely using cruise control and going to try to do it early tomorrow morning (assuming I wake up).
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Discussing Catalytic Not Ready in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)