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1998 Ford Contour E CHECK FAILURE O2 SENSORS

Tiny
BUD236
  • MEMBER
  • 1998 FORD CONTOUR
1998 Ford Contour 6 cyl 128000 miles

MY SONS CAR DID NOT PASS OUR E CHECK, WE HAVE CHANGED THE O2 SENSORS(BOTH)AND THE CHECK ENGINE LIGHT IS STILL ON. E CHECK CODE WAS 1131 O2 SENSOR LEAN. DOES DISCONECTING BATTERY RESET COMPUTER CODES IN CAR, WE DID THIS AND CHECK ENGINE LIGHT WENT OFF BUT CAME BACK ON. ALSO CAR MAKES A NOISE LIKE A FOG HORN WHEN RUNNING. I THINK THEY SAW US COMING WHEN I BOUGHT THIS CAR. ANY IDEAS HE REALLY WANTS TO DRIVE AND WE NEED IT TO PASS E CHECK. THANKS FROM A FRUSTERATED MOM
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Thursday, June 19th, 2008 AT 8:15 PM

1 Reply

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Possible cause are
1. Fuel system malfunction
2. Egr system malfunction
3. Air intake or vacuum leak
4. Engine oil level too high
5. Incorrect cam timing
6. Restricted air filter
7. Faulty PCV valve
8. Excessive internal engine wear
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Thursday, June 19th, 2008 AT 8:47 PM

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