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Inspection time & error code resetting

 
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Henry
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PostPosted: Fri Aug 03, 2012 4:09 pm    Post subject:  Inspection time & error code resetting Reply with quote

Of course, it's inspection time & an error code pops up.Sure, why not now, the month I have to go to inspection. Mad

It's a p0440, but we all know how to fix that one.

But the question is: After I use my scanner to clear the code; "How long do i have to wait before the system is "happy"? I can't clear the codes and go to inspection the next day, as they will fail me for clearing the computer. So what is the "age" time? 50 starts, 5 driving cycles, 30 days?

thanks.

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IffyG
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PostPosted: Fri Aug 03, 2012 4:11 pm    Post subject:   Reply with quote

It's impossible to give you a concrete answer. You are supposed to be able to get it to reset by doing the OBDII drive cycle for GM (easily found online), but I've had a hell of a time getting the EGR and EVAP systems to set to ready in the past. On on occasion it took me more than 500 miles of driving to get it to set... it sucked.

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Henry
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PostPosted: Fri Aug 03, 2012 4:19 pm    Post subject:   Reply with quote

uuuuuuuuuuuuuuuuuuuuh. Bad news.

Well, in this state we have a possible out.

I'm going to wait about 3 weeks before I go. If they fail me, I can get an "ERF", Emission Repair Form. You take it & the car to an approved facility and they do the repairs "or you can do it yourself". If you do it yourself, all you have to do is show them the bills for the materials used in the repair. So I'll go buy a purge solenoid and do the repair, clear the code and show them the receipts. That would get me out of the "you cleared the codes" issue.

The code only sets about once a year, so I'm not even sure it's the solenoid, but it's a cheap enough repair. The problem is it chose to set itself this month.

thanks.

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Dan
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PostPosted: Mon Aug 06, 2012 10:43 am    Post subject:   Reply with quote

Just get the car fixed. Take it to the dealer, they'll smoke it and repair as needed. The guess and check mentality around here is abhorrent.

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IffyG
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PostPosted: Mon Aug 06, 2012 10:48 am    Post subject:   Reply with quote

Dan wrote:
Just get the car fixed. Take it to the dealer, they'll smoke it and repair as needed. The guess and check mentality around here is abhorrent.


Really? Almost every P0440 is caused by a loose gas cap and taking it to the dealer isn't going to set the monitors any faster than tightening the cap and clearing the code on your own...

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PostPosted: Mon Aug 06, 2012 11:10 am    Post subject:   Reply with quote

The idea that all evap codes are a gascap fault is wildly naive.

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PostPosted: Mon Aug 06, 2012 12:05 pm    Post subject:   Reply with quote

Dan wrote:
The idea that all evap codes are a gascap fault is wildly naive.


Maybe I'm just lucky but it's worked 3/3 for me or family on our various cars.

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Henry
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PostPosted: Thu Aug 30, 2012 2:24 pm    Post subject:   Reply with quote

[The idea that all evap codes are a gascap fault is wildly naive.]

Well maybe not all, but many.

The update.

I bought a new gas cap from Chevrolet. It cost about $32. I know, they saw me coming.

Put it on and cleared the codes. Drove the car for 2 weeks (daily drive included highway driving). Passed inspection with no problems. So I'm good for another 2 years.

The inner gasket of the old gas was dried out and cracked radially in numerous places. The new cap closes tighter than the old one.

Chalk one up for a new gas cap curing the problem.

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TeenBeach
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PostPosted: Fri Aug 31, 2012 12:26 am    Post subject:   Reply with quote

The gas cap doesn't work for me! Still having problems with that code, for some reason the local shop doesn't even know whats wrong... so not sure what to do now...
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chibiblacksheep
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PostPosted: Fri Aug 31, 2012 6:40 am    Post subject:   Reply with quote

When it isn't the gas cap it's usually the charcoal canister

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PostPosted: Fri Aug 31, 2012 8:54 pm    Post subject:   Reply with quote

Hank, be sure to keep the cap's gasket and the mating surface of the filler neck clean and free of any blackish buildup. WD40 and a blue shop towel should keep the seal shiny. Peace, John

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