engine fault code 274E help

Discuss the problems with your X5 (E53).
dazzasgotav8
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Location: the west country
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Joined: Mon Oct 22, 2018 10:39 pm

engine fault code 274E help

Wed Dec 05, 2018 9:33 pm

From time to time on a cold start i will get the amber engine light flash on and off if i leave the car to tick over it goes out and all is fine , some times it will come on and stay on when i check the fault codes it comes up with 274E misfire detection checksum failure with misfires detected on cylinders 2,3,5,6,7,8 , but once its warm it never shows a fault i have looked into this fault code and it seems people talk about coil pack failure , spark plug failure and even chain slipped on pulleys , thing i dont understand is once its been started the fault seems to clear and it drives with no issues should i be thinking about replacing the plugs and coil packs or is there something else that would give this fault ..........
Horizon
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Location: Bury Lancashire
Posts: 2560
Joined: Sun Jun 10, 2012 7:34 pm

Re: engine fault code 274E help

Wed Dec 05, 2018 10:52 pm

From what I've read, several different posts say 02 sensor , would have expected it to be all the misfires on one bank though, not on 6 of the eight cylinders.
Have you got inpa, or a reader that will let you read live data from the 02 Lambda sensors.?
dazzasgotav8
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Location: the west country
Posts: 36
Joined: Mon Oct 22, 2018 10:39 pm

Re: engine fault code 274E help

Thu Dec 06, 2018 7:46 pm

Dont have access to inpa but can get my hands on a snap on reader but every time i check the codes never a mention of a o2 sensor fault , this is why i am confused as people speak of lots of cures for this code but no one seems to agree on what that fix is ..

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