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smog braintrust: what would cause high hydrocarbons at idle?

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Old 07-17-2006, 09:06 AM
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Default smog braintrust: what would cause high hydrocarbons at idle?
i've changed my oil. that dropped them from 127 to 114.

this morning i replaced my O2 sensor. it still failed, but i dont know by how much, since i told the guy to abort the test after the first failure...didnt want to waste the guy's time.

my mechanic suggested resetting the ECU and making it relearn everything.

any other ideas?
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Old 07-17-2006, 09:34 AM
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If CO is normal or really low it is probably a misfire
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Old 07-17-2006, 09:45 AM
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CO is normal. so how do i fix this?
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Old 07-17-2006, 12:13 PM
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crud all over the pickup tube?
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Old 07-17-2006, 12:14 PM
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what pickup tube?
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Old 07-17-2006, 12:25 PM
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pick up tube in the oil pan, just speculation I don't have an real data to back up my answer
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Old 07-17-2006, 12:35 PM
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not sure what that would have to do with emissions?
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Old 07-17-2006, 12:39 PM
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me either, I just threw it out there
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Old 07-17-2006, 12:59 PM
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Leaky/poor pattern injectors?
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Old 07-17-2006, 02:48 PM
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Default I replaced my spark plugs and then got the motor nice and warm when I had that issue.
It passed fine the second time around.
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