I PUT A 2000 5 SERIES BMW MOTOR IN MY 3 SERIES 1999 BMW AND USED THE WIRING HARNESS OFF THE ORIGINAL 3 SERIES WHICH I HAD TO AND NOW THE STARTS AND IDLES FINE WHEN YOU REV IT UP IT SPITS AND SPUTTERS
I PUT A 2000 5 SERIES BMW MOTOR IN MY 3 SERIES 1999 BMW AND USED TEH WIRING HARNESS OFF THE ORIGINAL MOTOR OUT OF THE 1999 3 SERIES AS i HAD TO BECAUSE THE WIRING HARNESS WAS DIFFERENT ON THE NEW MOTOR, ANYWAY NOW CAR STARTS AND IDLES FINE BUT WHEN I REV IT UP IT SPITS AND SPUTTERS ANYONE PLEASE HELP! WHEN I PLUGGED IT INTO THE COMPUTER IT READ SOMETHING ABOUT FUEL SENSOR 1 AND 2, DOES ANYONE KNOW WHAT THE PROBLEM COULD BE OR EVEN WHERE TO START???????????ANY HELP WOULD BE GREATLY APPRECIATED!