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Old 12-22-2011, 01:56 PM   #1
MacAttack
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Focus Didn't Pass First Emissions

I just got a call from the dealership, my Focus didn't pass the first round of inspections.

Last night, I put my second O2 sensor back in, and reset the ecu to stock. Other than that, I have a 2.5 FSWerks exhaust and a K&N air filter.

They said that if the codes were cleared recently, that could be a cause for it not passing originally. Resetting the ECU would do that. But as for the running test, should I be worried at all?


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Old 12-22-2011, 02:01 PM   #2
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You have to drive the car about 60-75 miles both in town and highway to let all the systems run before having the emission test ran on it. Once you do that and you have no CEL's you'll pass no problem.
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Old 12-22-2011, 02:12 PM   #3
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Even if the codes have not been cleared lately if you have a tune on your car with things turned off that would show a readiness codes not ready/complete , do you have a tune ?

Tom
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Old 12-22-2011, 02:22 PM   #4
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Originally Posted by norcalfocus01 View Post
You have to drive the car about 60-75 miles both in town and highway to let all the systems run before having the emission test ran on it. Once you do that and you have no CEL's you'll pass no problem.
Ah, that would be it. Had tops 15 miles on it after resetting the ecu to stock.
After running it with Tom's tune, I really hate the driving feel after going to stock. I'll have to remember that next time.
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Even if the codes have not been cleared lately if you have a tune on your car with things turned off that would show a readiness codes not ready/complete , do you have a tune ?

Tom
Yeah, your tune. But I set the ecu back to stock just before taking it in.
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Old 12-22-2011, 02:30 PM   #5
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When you change the tune it acts like doing a ECU reset , go drive

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Old 12-22-2011, 03:23 PM   #6
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Although emissions hasn't been the only problem. Looks like I had plenty of brake wear. That is something I've noticed with the tune, the car accelerates even with my foot off the pedal. So to just go forward slowly I have to apply the brakes, otherwise, I'll move forward faster than the people in front of me.

So the tune has been hell on my brakes. Any recommendations there?
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Old 12-22-2011, 04:48 PM   #7
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Lower the idle , shouldnt be above 900-950 a 5mph role has little to no effect on the brake ware

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Old 12-22-2011, 05:10 PM   #8
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Lower the idle , shouldnt be above 900-950 a 5mph role has little to no effect on the brake ware

Tom
Yeah, it's normally over 1k. I'll do that, thanks.
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Old 12-22-2011, 05:26 PM   #9
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I went in to change the options but it wouldn't let me. Only the first tune I had would allow me to change the options, the others wouldn't.

What could have caused that?
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Old 12-22-2011, 10:59 PM   #10
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Not to triple post, but for anyone else who has this issue, my Focus passed inspection. If you reset the ecu, drive it for around 70 miles, plenty below 55 mph.

My brakes got worn because it was idling too high. After I get an unlocked tune, I'll be able to lower that, and everything should be fine.
This wasn't the tune's fault, I should have acted on this a while ago. I knew the idle was a bit too high, and that it was creating brake wear. After I fix the idle, that shouldn't be an issue again.


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