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#1248229 04/16/05 01:38 PM
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Koski Offline OP
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Ok guys, here's a stumper.
My CEL was lit up for a while, so i got it scanned.
Sure enough, it was the bank one upstream O2 sensor.
So, I replaced that O2 sensor. I start up my car, and after not 10 minutes of driving, my CEL lights back up...
Any ideas?


------------------------ 98 SE Sport Setup: Stock ---------- ----------
#1248230 04/16/05 02:17 PM
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get it rescanned, you might have had more then one code??? or you put the new sensor in wrong.


1998 SE Duratec V6 ATX Ebay intake with K&N Filter Trubendz Exhaust Custom Hood
#1248231 04/18/05 12:55 AM
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Or you replaced the wrong part.....

Steve


98 Contour SE Sport 2.5 Duratec ATX The wifey's car 89 Taurus SHO - 246K miles 94 SHO ATX - 190K 1997 F-150 5.4L ATX - The Workhorse 150K. ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!
#1248232 04/18/05 01:39 AM
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Or just because your code said it was the O2 sensor, maybe it was an underlying problem.

If your code says O2 sensor at the LEAN limit. maybe it isn't bad.. maybe it is working, and SENSING that your car is incredibly lean...



Ray


'99 CSVT - Silver #222/276 In a constant state of blow-off euphoria.
Originally posted by Kremitthefrog:
I like to wear dresses and use binoculars to watch grandmas across the street.


#1248233 04/18/05 02:00 AM
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Ususally an air leak upsteam will throw the lean codes. I'd look at any intake you installed for gaps, loose fittings or stuff like that.


2000 SVT Turbo 295hp/269ftlb@12psi #1 for Bendix Brakes Kits! Knuckles rebuilt w/new bearings $55 AUSSIE ENDLINKS $70 Gutted pre-cats $80/set A lack of planning on your part does not constitute an emergency on mine!
#1248234 04/18/05 02:08 AM
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I had a lean code not too long ago, and its cause was one of the two upper intake vacuum hoses broke at the 90* joint. I accidently broke one after cleaning the intake and after it was replaced, the code went off all by itself


Alex 00 T-Red/Tan SVTC #1964/2150 167 HP @6800 153 TQ @3000 Sold- 98 'Tour SE 24V 5-spd 149 HP @5900 148 LB FT @4300
#1248235 04/18/05 02:40 AM
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Yeah that is also true. It might not have been the sensor itself. Or now that the sensor is working properly, something else isn't!!! hehe Get it rescanned at AZ and write down the exact code. You'll find help from there.


1998 SE Duratec V6 ATX Ebay intake with K&N Filter Trubendz Exhaust Custom Hood

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