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Joined: Aug 2002
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Hard-core CEG'er
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my check engine light came on today, so i ran straight to autozone and got it checked. i need a new 02 sensor. is it easy to install, could someone please tell me how. thx.
Russell
Oval Port 3L Nearly Done
MTX75 w/ Homebrew Zetec FD and Torsen Complete
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Joined: Jul 2000
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Hard-core CEG'er
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Hard-core CEG'er
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4 or 6 cyl? bank 1 or 2? There are several threads on this over the last week or so which cover most possibilities.
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Joined: Aug 2002
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Hard-core CEG'er
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OP
Hard-core CEG'er
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Russell
Oval Port 3L Nearly Done
MTX75 w/ Homebrew Zetec FD and Torsen Complete
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Joined: Jul 2000
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Hard-core CEG'er
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Hard-core CEG'er
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Upstream or downstream? Or 95? (Upstream only  ) Bank 1 is next to firewall.
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Joined: Aug 2002
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Hard-core CEG'er
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im almost positive it was this code
P0420 Catalyst System Efficiency below Limit - Bank No 1.
might have been p0421 though
so, anyone know how to fix it?
Russell
Oval Port 3L Nearly Done
MTX75 w/ Homebrew Zetec FD and Torsen Complete
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Joined: Sep 2002
Posts: 192
CEG\'er
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CEG\'er
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Try running some high test gas I did and light went out
1999 GREEN Contour SE SPORT Duratec V6, ATX, SUNROOF, 93,000 Miles, P0420 ON&OFF -replaced DS O2 --did not FIX
*New TORQUE CONVERTER @ 53,000-Intermittent P1744
*New DASH at 53,000 and New DASH lifted-now using MOLLEY bolts to pull down
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Joined: Jul 2000
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Hard-core CEG'er
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Originally posted by PoopStainz:
P0420 Catalyst System Efficiency below Limit - Bank No 1.
so, anyone know how to fix it?
This code would be triggered by the O2 sensor after the pre-cat. This is easy to change from under the car. This is the downstream sensor for bank 1 which should be available at most parts stores.
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Joined: Apr 2001
Posts: 4
Newbie
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Newbie
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Autozone will check and run trouble codes for you? Do they charge for this? Will they do it for any year Contour? Thats pretty schweet.
--Ken
96 SE MTX Black, KKM Tru-rev, SVT Exhaust, SP/KVR brakes. Now if only I could drive...
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Hard-core CEG\'er
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Hard-core CEG\'er
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95 Contour Zetec, ATX (wrecked, sitting in the barn)
95 Mystique Zetec, MTX
2000 Taurus SEL 3.0L Duratec
1994 Crown Victoria LX 4.6 V8
1993 Chevy Silverado 4.3 V6
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Originally posted by contoured:
Try running some high test gas I did and light went out
i run nothing but 93 from 76
Russell
Oval Port 3L Nearly Done
MTX75 w/ Homebrew Zetec FD and Torsen Complete
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