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Old 10-08-2008, 09:37 AM #1
ScottDetroit ScottDetroit is offline
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Join Date: Dec 2003
Location: Detroit
Age: 49
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ScottDetroit ScottDetroit is offline
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Join Date: Dec 2003
Location: Detroit
Age: 49
Posts: 13
ScottDetroit is an unknown quantity at this point
Unhappy 2002 4Runner- VSC Trac Check engine lights came on today

I have a 2002 4Runner with 109,000 miles on it. On the way to work this morning, the VSC, Trac, and Check Engine lights came on. I did the research on the site about the Zero Point Calibration. I've never replaced the 02 sensors- could this also be the cause? I'm driving to Chicago from Detroit thursday. Is this something I can 'handle' when I get back from my trip or should I not be driving that distance with these lights on and these systems 'shutdown'?

Thanks for any help or info,

ScottDetroit
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Old 10-10-2008, 03:32 PM #2
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CitadelBlue CitadelBlue is offline
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My CEL, VSC Trac and VSC Off came on last week (91500 miles) I went to AutoZone and Advanced Auto Parts and both came up with a code P1135 - Air- Fuel Ration (A/F) SensorHeater Circuit Malfunction ...... I search soem otehr web sites and basicy they suggested replacing this sensor. Its the more expensive one P/N Denso 234-9002 and is located just forward of the catalic converted. I ordered it from Sparkplugs.com for $153+ but after I ordered it, I saw that Amazon.com had it for a few dollars less. Dealer price is $250+ . Mine is suppose to be in on the 15th. To test the sensor, place an ohm meter on it touching the 2 black wires. Resistance should be between .8 and 1.4 ohms.
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