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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Throwing random codes, help? 300 in-line six

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Old Feb 15, 2018 | 05:42 PM
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Throwing random codes, help? 300 in-line six

I have a 1993 F150. 144xxx miles. Oil was changed six months ago, but doesn’t have 3k on the change yet. I only drive it about 1-3x a week. NEVER threw codes or warning lights before. Out of nowhere today, I went to drive it, and out of nowhere it started throwing the check engine light, ABS light, randomly. it seemed to be running fine. I would turn it off to check, turn it back on, all lights were off, then they would randomaly appear again. I checked the oil, only thing is it had tiny air bubbles in it.
 

Last edited by SabrinaNicole98; Feb 15, 2018 at 05:43 PM. Reason: detail
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Old Feb 15, 2018 | 05:54 PM
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Run the Key On Engine Off (KOEO) tests and stored coded (CM) display. That should tell you why the Check Engine Light is popping on.

Do this to pull the RABS Flashout for the ABS light.
 
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Old Feb 15, 2018 | 06:01 PM
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Originally Posted by rla2005
Run the Key On Engine Off (KOEO) tests and stored coded (CM) display. That should tell you why the Check Engine Light is popping on.

Do this to pull the RABS Flashout for the ABS light.
Sorry to be ignorant, but how do i do the KOEO test?
 
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Old Feb 15, 2018 | 08:19 PM
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Details in this recent thread: https://www.ford-trucks.com/forums/1528313-1989-ford-f150-302-efi.html
 
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