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#1
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failed emissons....
i took my svx to emissions and i failed the hydrocarbon test.
in AZ the standard is 220 for hydrocarbon and i was at 272....any ideas? things to know: check engine light with code 56....i passed previuos years by reseting the computer before getting tested. new this year: magnaflo exhaust enzo filter switched from conventional oil to synthetic
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VICSVX 94 SVX L AWD Conversion Barcelona Red First car and now being restored, 215xxx |
#2
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Re: failed emissons....
Warm up the cats more?
Your numbers are REALLY close... Last edited by Sov13t; 09-21-2009 at 03:11 PM. |
#3
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Re: failed emissons....
Yeah I have the code 56 as well, but I passed just fine after going on a 20 minute freeway drive immediately prior to taking the test. Assuming you have newer spark plugs and use fuel injector cleaner once in a while, this would be the best course of action.
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#4
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Re: failed emissons....
so i went and changed my air cleaner to OE and i failed agaian but worse...i got a 377!!
so i asked around and ppl said change spark plugs and possibly the wires too..how hard are those to change and what is recomended?
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VICSVX 94 SVX L AWD Conversion Barcelona Red First car and now being restored, 215xxx |
#5
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Re: failed emissons....
Quote:
I would also run fuel injector cleaner through your system prior to retaking the test. |
#6
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Re: failed emissons....
ok i'll try that this weekend hopefully
thanks...i'll give an update
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VICSVX 94 SVX L AWD Conversion Barcelona Red First car and now being restored, 215xxx |
#7
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Re: failed emissons....
Need more information. What type of emissions testing is done where you are? Did you fail under load or at idle (if your testing is done that way).
High HC can be caused by a nearly unlimited number of items but a "short" list will include: Plugs Wires (coils) Vacuum leak EGR (though you would expect to see high CO at the same time) Knock sensor Timing advanced too far (cant burn all the fuel it is getting) If you just had the high HC problem at idle then the first place to look is to the plugs and coil, that is typically an indicator of a pretty steady misfire. Not to ruin the day but there is also a possibility (though slight) that high HC at idle can be caused by a loss of compression when the exhaust valve leaks. On the plus side, you are really close to passing. You might be able to get it clean enough by just changing the plugs. Can you post a picture of the results you got from your testing facility?
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1992 SVX AWD |
#8
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Re: failed emissons....
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i will post later tonight...ive been busy with work. but i got the new plugs and are going to put them in soon....i also was suggested to get a new main cat....so im picking that up tomorrow after work. and yes i was at idle
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VICSVX 94 SVX L AWD Conversion Barcelona Red First car and now being restored, 215xxx |
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