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Old 01-29-2010, 02:49 PM
pushtrk99 pushtrk99 is offline
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Join Date: Jan 2010
Posts: 14
Default 1999 ranger 4.0

Does anybody know how to reset computor so the CHECK ENGINE light will go out-I thought that if you disconnect the battery and then reconnect it would do the trick but only for a short time-I have had it read with a snap-on diagnostic thing and it said both banks were lean-I have changed three ox sensors -IAT-Wiped the MAF sensor with achohol- And changed the temp sensor by the termastat (the one with two wires)-also changed fuel filter -now I would like to reset CHECK ENGINE- but can't find out how--Thanks Rich
The original problem is the motor idles at 1200rpm when warm and check engine light came on-Car runs good and strong have sprayed ether around intake to see if there was intake leak? NO leaks
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Old 01-29-2010, 07:32 PM
Fx4wannabe01 Fx4wannabe01 is offline
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Join Date: Sep 2009
Posts: 4,058

If you did use a diagnostic tool(scan tool), it should have a clear code button/function to clear the code on the truck.
'01 XLT disguised as a '03 Fx4 Level II.
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