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Old 04-08-2002, 11:40 PM
JDUB JDUB is offline
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Join Date: Apr 2000
Posts: 412
If the oxygen sensor is bad the computer will default to preprogrammed settings. If the oxygen sensor circuit is bad the check engine light will come on. An intermittant problem like this is difficult to find but my guess is that it is ignition wiring. If the problem just came up suddenly it could be bad fuel or the fuel filter. Hope this helps. Let us know if the problem gets resolved or what you have done to remedy the problem.
1990 190E 2.6
1996 Grand Voyager 3.3
1985 Mustang GT 5.0 5 SPD
1982 Suzuki GS 750T
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