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Old 02-13-2009, 12:05 AM   #1
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I ran a scan after the CEL came on in my wifes Bonnie. P0135: Sensor 1 Bank 1, Sensor Heater Circuit Malfunction...
What is this? Does it have anything to do with the crazy temperature guage? I replaced the sending unit a few months ago, I discussed the problems I was having with the gauge in another post. I just think it would be funny if it is related, especially aftert his much time has passed.
Any help, suggestions, or ideas would be greatly appreciated.
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Old 02-13-2009, 12:54 AM   #2
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OK, now I've pulled my head out a little bit... Bank 1 is that the left side of the engine? Also is this the "upstream" sensor? In front of the cat?
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Old 02-13-2009, 01:17 AM   #3
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Check the 02 sensor upstream of the cat. It'* located on the down tube from the exhaust collective by the firewall.
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