Howdy gang, I have been getting a check engine light for about 3 weeks off and on. It will come up while driving and then clear after maybe 6-8 or so restarts.

A friend in my local mini club used his fancy computer reader to confirm the code U3FFF.

I have no mods, yes i know its sad, but looks like when i do a search this code comes up as an issue related to alta or other airflow or exhaust mods.

I only use top tier gas and only premium. It has rained a lot here so i have been trying different gas stations in order to make sure its not fuel related.

Ran a can of seafoam through 2 weeks ago and then this last fill up.

I had the mini in for scheduled oil change and brake pads at around 55k miles (under maint warranty till 6yr 100k), check oil last week, was not exactly to the fill line so i added about 1/3 a bottle to get it up there.

Other than that nothing special, i do not track it, but i do drive spirited on my way home from work, commute to work is mostly stop and go as well as the drive home, except for the last 8 miles which is when the sport button gets turned on to unwind a little.

Thats about all the details i can think of to share.

There is a DIY day coming up for my local mini club and if its an issue that is not covered under the extended maint warr, i would like to try and take care of it then.

thanks for the help in advance.

dave

 

So no response? My wifes 09 MCS just thru this code today? U3FFF. Nobody has any ideas?

 

Take it to your local auto parts store and have them read the code (most will do this for free). Your friend probably has a ScanGaugeII and it is incorrectly reading the code. Oh, and if you don't have any mods, take it to the dealer and have them fix whatever is causing the code.

 

Took I to my mechanic, he uses Bavarian Technic software and was able to read it. It has multiple cylinder misfire codes and a high pressure system code. Apparently the 2nd generation cars high pressure fuel pumps are junk. It's on it's way to the dealer for repairs.

 

I just threw this code yesterday while driving. I know this is in the stock issues and what not, but I only have minor mods done to the car(as you can see in my signature). If someone can please tell me what it means or what I can do for now til I go to my appointment at the dealer. This is the fifth problem with the car already and I am thinking already of trading it in before I run out of my warranty. HELP

 

Scangauge II pop up this U3FFF code? Anybody know what is this code?