My 2003 mini copper the service engine light stays on, car is running OK?


Asked by Nov 12, 2014 at 02:31 PM about the 2003 MINI Cooper Base

Question type: Maintenance & Repair

I put in a fuel injection cleaner in the gas tank with high test fuel, the good cleaner,
(treflon?) two days later, the service engine light stays on? When first going, it seems
a little slow, but runs great after I get up to 15 or 20?

6 Answers


This may be due to the fuel cleaner you put in the car,it may have up rooted trash,in your tank and pump,check the fuel filter,may be stopped up a little.

1 out of 1 people think this is helpful.

I had a feeling that I did up root trash! Thank You, It stated about 1&1/2 days after I put the fuel cleaner in.

Tom Demyan

Since the SEL is on, scan for codes.


Was it Seafoam?


No, It was Treflon? forgot how to spell it, make buy chevron


also check the fuel injector micro filter.... if one gets plugged the engine runs lean and could burn a valve... (like me)

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