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Check engine light not fixed by replacing o2 sensor??

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Old 02-12-2009, 05:44 PM   #21
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chances are, it's just the heater circuit in that a/f sensor. p1135 is bank 1 sensor 1, which if you have a 5vz engine, should be the top sensor (before the cat) on the passenger side. It's not at all uncommon for the heater circuit to fail.
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Old 02-12-2009, 06:14 PM   #22
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Mine threw a P1135 a couple days ago...and I found this:

http://www.engine-light-help.com/toy...ine-light.html

Very helpful. This weekend I'm gonna get the DVM out and make sure the wiring is good before I sink 65 bucks in a sensor.
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