92 ranger trouble
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Joined: Oct 2006
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92 ranger trouble
I am having some trouble with my 92 ranger. It idles rough, gets terrible fuel economy, exhaust smells rich and the check engine light is on. Put on code reader, and says O2 sensor. I've changed the O2 sensor just in front of the cat, pcv, idle air control valve, fuel filter, air filter, and run injector cleaner through fairly regular. Summit33 sounded like he had the same trouble with his in 1994. I'm wondering if anyone has any other suggestions, and if there is maybe another O2 sensor. I do not have one on my manifold like I was told there might be. Thanking anyone for their input. I am a new member and can't email Summit33 yet, but if you read this, could you please reply and let me know how you corrected your problem in the end.
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Joined: Dec 2003
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From: iowa
This is one of those cases that the computor can and does lie to you. checking codes gives you an idea of where to start looking not what parts to replace. A rich oxegyn sensor code the first thing I would check before replacing any parts is the fuel preasure. A majority of the time the code has to do with the sensor it points to but not everytime and O2 sensor codes are notorious for bieng wrong.
So check the fuel preasure in the rail if it's high you are looking at a preasure regulator.
So check the fuel preasure in the rail if it's high you are looking at a preasure regulator.
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