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Engine misfire - No codes

luca1290

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Joined
Apr 16, 2022
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Location
Italy
First Name
Luca
Vehicle(s)
Mustang GT, MB A250 4Matic W177, Mazda MX-5 ND, Ford S-Max 2nd series, Lancia Y
Hello guys,

I've had a misfire this morning, car was running for a few minutes at intermediate speeds on open roads and was already into temperature (CHT around 87°C).
Then when I gave her a little bit more of throttle, progressing to warm her up good, I felt the engine misfiring and there was the CEL flashing.
It lasted a few second then disappeared, the car proceeded to warm up and the rest of the trip was perfect.

Parked the car, went for a stroll and when I came back the car run fine again. Tested the car in all conditions and no more misfires.

I checked and there are no store codes in any ECU, the only traces of a misfire I could find it was in the misfire monitor tables:
Misfire.PNG


The only thing I did was to change the oil the past week (Mobil 1 X1 5W-30) with a new Ford FL-500 filter.

Any suggestion? Should I just observe if it happen again?
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