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P0420 - inspection - drive cycle
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xnick
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PostPosted: Thu Sep 17, 2009 11:45 am    Post subject:  P0420 - inspection - drive cycle Reply with quote

So I'm due for an inspection, but I'm currently throwing a p0420 because of my ZZP dp. I know my options are to either get an O2 sim, or a PCM with the code deleted. However, I'm wondering if there is another way...like clear the code and get a drive cycle in BEFORE the code throws again, but after the sensor is set. is this even possible? I don't plan on keeping the car much longer so I don't really want to buy a PCM. My mechanic said if I get it in at the right time before the code throws, the sensor might be ready and I might pass.

any ideas?

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IffyG
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PostPosted: Thu Sep 17, 2009 11:48 am    Post subject:   Reply with quote

Sure, you might get lucky if you clear the code and complete a drive cycle. However, unless you have a way to check the emissions monitors, you will likely be wasting your time.

You could try using a spark plug anti-fouler to trick the sensor into thinking its ok... but I'm not even sure if that trick works on our cars.

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xnick
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PostPosted: Thu Sep 17, 2009 11:51 am    Post subject:   Reply with quote

I read that if I do highway driving I am less likely to throw the code "as fast". can anyone verify this? I might do a lap around Buffalo then take it in if that's the case.
I have no way of reading sensors, so it will be luck with me.

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IffyG
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PostPosted: Thu Sep 17, 2009 12:09 pm    Post subject:   Reply with quote

It took me almost 500 miles over 3 weeks to get my monitors to the point that i could pass an inspection...

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PostPosted: Thu Sep 17, 2009 1:05 pm    Post subject:   Reply with quote

You could alway try this....
http://www.naioa.com/v2/module.....ight=cycle

And another member, which I can't recall, had some luck with one of those anti-foulers. Worth a shot if you fail and need to go back.

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xnick
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PostPosted: Thu Sep 17, 2009 2:09 pm    Post subject:   Reply with quote

thanks Z.... do I spray the anti-fouler on the O2 sensor? as in, i'll need to remove it?

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PostPosted: Thu Sep 17, 2009 2:17 pm    Post subject:   Reply with quote

xnick wrote:
thanks Z.... do I spray the anti-fouler on the O2 sensor? as in, i'll need to remove it?


Basically you remove the O2 sensor and put a spark plug antifouler between the exhaust pipe and the sensor. It changes the air the sensor is sampling, so it thinks the cat is working properly.

Edit: here is what is involved. The write up is for an Evo, but the general idea is the same. http://forums.evolutionm.net/e.....light.html

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PostPosted: Thu Sep 17, 2009 2:29 pm    Post subject:   Reply with quote

Thanks IffyG, I'll try this tonight.

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PostPosted: Thu Sep 17, 2009 6:53 pm    Post subject:   Reply with quote

xnick wrote:
I read that if I do highway driving I am less likely to throw the code "as fast". can anyone verify this? I might do a lap around Buffalo then take it in if that's the case.
I have no way of reading sensors, so it will be luck with me.


thats the only time mine ever came on.

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xnick
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PostPosted: Fri Sep 18, 2009 10:31 am    Post subject:   Reply with quote

Pitch Black SS wrote:
xnick wrote:
I read that if I do highway driving I am less likely to throw the code "as fast". can anyone verify this? I might do a lap around Buffalo then take it in if that's the case.
I have no way of reading sensors, so it will be luck with me.


thats the only time mine ever came on.


yours came on only after highway driving? I was told I might get leaner readings if I'm on the highway (more in, more out?). I tried the spark plug anti-fouler last night. drill locked up inside of it, broke my vice and sent me to the hospital Sad

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PostPosted: Fri Sep 18, 2009 11:08 am    Post subject:   Reply with quote

xnick wrote:
I tried the spark plug anti-fouler last night. drill locked up inside of it, broke my vice and sent me to the hospital Sad


Ouch. Sorry to hear that. Are you broken now? Laughing

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PostPosted: Fri Sep 18, 2009 11:19 am    Post subject:   Reply with quote

IffyG wrote:
xnick wrote:
I tried the spark plug anti-fouler last night. drill locked up inside of it, broke my vice and sent me to the hospital Sad


Ouch. Sorry to hear that. Are you broken now? Laughing


slice down the wrist, 8 stitches, but it was honestly the best outcome of the situation. could have been A LOT worse. Before I went to an emergency care center, I finished drilling thru the first anti-fouler Laughing

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PostPosted: Fri Sep 18, 2009 12:05 pm    Post subject:   Reply with quote

Dang Nick that sucks, are you gonna be down and out for a couple of days, or are you gonna show that fouler who's boss?

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PostPosted: Fri Sep 18, 2009 1:42 pm    Post subject:   Reply with quote

PushrodPower wrote:
Dang Nick that sucks, are you gonna be down and out for a couple of days, or are you gonna show that fouler who's boss?


lol I'm going to be heading to the track here shortly with Nightryder, then early tomorrow I'm going to jack the car up and get back at it Cool

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PostPosted: Fri Sep 18, 2009 1:54 pm    Post subject:   Reply with quote

xnick wrote:
IffyG wrote:
xnick wrote:
I tried the spark plug anti-fouler last night. drill locked up inside of it, broke my vice and sent me to the hospital Sad


Ouch. Sorry to hear that. Are you broken now? Laughing


slice down the wrist, 8 stitches, but it was honestly the best outcome of the situation. could have been A LOT worse. Before I went to an emergency care center, I finished drilling thru the first anti-fouler Laughing

Damn.....slow down..............
I want to know the out come too.........
If it works im doing it too............. Laughing

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