When cold engine light flashes
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When cold engine light flashes
Only when it's cold out the engine light flashes for alittle bit. Then after it warms up its stops. Or if it's alredy warm out it dosent flash. It was fine from spring till now. What does it mean? And I don't belive I have a computer in my engine any more the spot for it is empty and there is spot under the dash for a plug.
It's a 89 f250 7.5L lariat
It's a 89 f250 7.5L lariat
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Joined: Jul 2011
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From: Vernon, BC
Mine does the same but only when it's -15 C and colder. Not always but often enough that I was concerned. However, once the truck warmed up the cel went out. When I test for codes I get a pass on KOEO as well as KOER so I don't worry about it anymore.
This summer I took apart as many of the connections as I could find and cleaned them and put them back together. I'll see if it happens again this winter.
I don't know what to say about your empty slots for your computer but I always thought an 89 wouldn't even run without one.
This summer I took apart as many of the connections as I could find and cleaned them and put them back together. I'll see if it happens again this winter.
I don't know what to say about your empty slots for your computer but I always thought an 89 wouldn't even run without one.
Lead Driver
Joined: Aug 2006
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From: Sand Lake, MI
Only when it's cold out the engine light flashes for alittle bit. Then after it warms up its stops. Or if it's alredy warm out it dosent flash. It was fine from spring till now. What does it mean? And I don't belive I have a computer in my engine any more the spot for it is empty and there is spot under the dash for a plug.
It's a 89 f250 7.5L lariat
It's a 89 f250 7.5L lariat
Computer would be behind the parking brake pedal assembly its harness connector seen from under the hood.
As seen in the below image labeled "EEC connector".
if converted to carb the computer might very well be gone but if factory yet its gotta be there someplace.
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EFI still or has it been converted to a carb by a previous owner?
Computer would be behind the parking brake pedal assembly its harness connector seen from under the hood.
As seen in the below image labeled "EEC connector".
if converted to carb the computer might very well be gone but if factory yet its gotta be there someplace.
Computer would be behind the parking brake pedal assembly its harness connector seen from under the hood.
As seen in the below image labeled "EEC connector".
if converted to carb the computer might very well be gone but if factory yet its gotta be there someplace.
It's fuel injection. I will have to look under the hood later when I go out to secure my tool box see if it's still there
Fleet Mechanic
Joined: May 2005
Posts: 1,575
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From: Puyallup, WA
Rest assured that if you have EFI, your truck WILL HAVE a computer. It would not run without it!
David
David
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Laughing Gas
Joined: Nov 2013
Posts: 871
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From: Orcas Island, WA
Subford posted some photos in response to a question I had posted, perhaps they'll be of help to you:
https://www.ford-trucks.com/forums/1...l#post13991443
https://www.ford-trucks.com/forums/1...l#post13991443
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Subford posted some photos in response to a question I had posted, perhaps they'll be of help to you:
https://www.ford-trucks.com/forums/1...l#post13991443
https://www.ford-trucks.com/forums/1...l#post13991443
Thank you for these. I'm going to have to go out and look again. Cause I'm not seeing it
Laughing Gas
Joined: Nov 2013
Posts: 871
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From: Orcas Island, WA
Be aware that what those photos, as well as the photos posted by flicka426, show is the plug from the engine compartment harness to the computer. The actual computer is inside the cab. It is located inside the driver's side kickpanel with the wiring socket penetrating the firewall.
Last edited by Island Time; Sep 29, 2014 at 11:53 AM. Reason: typo
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