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12 mpg 1993 ssei ???!!!

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Old 02-23-2009, 04:47 PM
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Okay So I replaced the fuel filter and I didn't notice any difference. So I suppose now I must try the next thing.
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Old 02-23-2009, 05:50 PM
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How Can I tell if the PCV is bad?
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Old 02-23-2009, 05:53 PM
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All you can really do is check everything you can, test what you can, and replace what ever needs to be replaced.
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Old 02-23-2009, 06:00 PM
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Originally Posted by HarpKatt
How Can I tell if the PCV is bad?
If you take the PCV out and it rattles loosely when you shake it, it'* good. They are pretty cheap and replacing one is not that big of deal.
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Old 02-23-2009, 06:03 PM
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There'* a write up on changing yoru PCV in the tech info area. Real easy job.
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Old 02-24-2009, 01:32 PM
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I took the PCV out it looks fine but should it come out when I pull the spring out? they were stuck together and it came out rather easily.
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Old 02-24-2009, 02:09 PM
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That'* fine. But watch for the rubber O-ring.
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Old 02-24-2009, 10:57 PM
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A friend said that it could be an air intake temperature sensor. Is that a possibility?
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Old 02-24-2009, 11:01 PM
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Yes, that can have an effect on how the engine runs. The PCM needs to know the correct temp as the air enters the MAF.
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Old 02-27-2009, 09:01 AM
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To update this problem is still unresolved.
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