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MAP Sensor connector question

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Old Mar 14, 2025 | 11:40 PM
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MAP Sensor connector question

I am noticing the "check engine" light comes off and on for 30-60 seconds intermittently when I drive my 1996 Ford F250 4x4 with the 5.8 EFI, it currently has 175,1xx miles and I have driven it nearly 10,000 miles since owning it. Lately over the last few weeks I have gradually been looking over my electrical connectors on parts in my engine compartment, cleaning the plastic and putting on fresh di-electric grease on the terminals.

I have noticed that my MAP sensor electrical connector wiggles after I re-attach it to the sensor itself. I'm wondering if the plastic connector end is worn out and if replacing the plastic connector is worth a try.
 
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Old Mar 15, 2025 | 12:05 AM
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Instead of randomly disconnecting components and cleaning them, why not just read your engine codes and see why the ECU is unhappy?
https://www.ford-trucks.com/forums/1...aper-clip.html
 
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Old Mar 15, 2025 | 08:11 AM
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I have the 111, so technically there are no codes.
 
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Old Mar 15, 2025 | 10:21 AM
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If the light flashes but doesn't store a code you have a computer problem.

As far as the MAP connector goes... it has a foam seal that degrades/shrinks. A new connector would fix this.
 
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Old Mar 15, 2025 | 12:46 PM
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You can't have a check engine light and NOT have codes. The codes will delete themselves after 30 or so starts if the computer doesn't detect the problem again.
 
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Old Mar 15, 2025 | 04:21 PM
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Agreed, the continuous memory codes will be there if the light was on within 6 starts or so
Try running the tests again
 
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Old Mar 15, 2025 | 08:42 PM
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X2....Run the Key On Engine Off (KOEO) tests and Stored Code display. There are two parts to the engine off tests/code display.
 
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Old Mar 16, 2025 | 11:35 PM
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I have compiled a separate thread as a follow up.
 
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