12 mpg 1993 ssei ???!!!
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I replaced the o2 Sensor.(made sure it didn't touch the plug wire)Checked the plugs. Checked the PCV valve.Replaced the fuel filter. Air Cleaner is good. MAF was cleaned. Coils,alternator and throttle position sensor were replaced within a few years. My friend is bringing the car to his shop to check the air intake temperature sensor fuel pressure and regulator today.
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Well actually I had replaced the filter as well. I think I found the problem though. There was a dry rotten vaccuum line that was cracked. I think that should fix it. I'll post my new MPG numers after I drive ot a bit more.
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Ok so I have driven the car quite a bit more and in fact have noticed no change in fuel economy it is becoming quite a headache as it is still sucking fuel. I did notice that when it is cold out a very obvious smell of gasoline is exhausted. Please if anybody knows what this could be?
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A gas smell could be caused by incomplete burn, weak spark, bad spark plug, grounding can cause this. Forgive me if I suggested this already, but have you tried taking a spray bottle with water and misting the plug wires and coils. Do this at night with the lights out. If you have a grounding problem, you will see blue arch.
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No you hadn't that is possible though as my friend say he noticed my lights flicker and dim a little even though the alternator is fairly new.
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billha
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03-08-2009 05:31 PM