starting while pumping is a bad habit. this artificial fuel enriching will result in unburned carbides to be deposited on to stem, valve, cylinder wall, rings. as you know, carbides are hard, scratching moving parts very badly. people should only use it once in awhile on old cars with carburetor while it can't be started otherwise.
since your car is all computerized fuel delivery system, the proportion of air/fuel is controlled automatically, when your friend did that, the ECB detected the rich mix, and instantly indicated out engine/electronic is wrong, so it threw a flag.
there are couple things you can try -
(1) disconnect negative cable from battery, wait for 20 seconds, reconnect it. this should erase the code.
(2) find a code reader (ODB2) to erase the code.
(3) continue to drive it for couple more weeks. it takes time for next cycle to erase it by itself.
good luck.
since your car is all computerized fuel delivery system, the proportion of air/fuel is controlled automatically, when your friend did that, the ECB detected the rich mix, and instantly indicated out engine/electronic is wrong, so it threw a flag.
there are couple things you can try -
(1) disconnect negative cable from battery, wait for 20 seconds, reconnect it. this should erase the code.
(2) find a code reader (ODB2) to erase the code.
(3) continue to drive it for couple more weeks. it takes time for next cycle to erase it by itself.
good luck.
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