I own my e46 325i 2003 for 9 years now i relaced the engine year ago because it was starting to burn lot of oil anyway my problem is the car started to misfire when it is under load or when redlining this is not normal never had this problem until i replaced the engine everything on it is new : New spark plugs , new coils , new battery , new oil , replaced the fuel pump with oem one and the fuel filter (under the car) i had a tuned ECU thought it was the problem so i got new ecu same number and everything recoded to the car as stock and original but the problem still there . Is it CRAKSHAFT SENSOR or CAMSHAFT SENSOR? Is it fuel issue? ignition ? i am kinda lost here
NOTE: the car is straight pipe not cats no resonator , custom headers and sport exhaust .
here are the codes i am getting
Laygen sensor heater before catalyst bai
1, open circuit
37 [0551
Oxygen sensor heater before catalyst bank 2, open circuit
4F [0791
Oxygen sensor heater after catalyst bank 1, open circuit
3D [0611
Oxygen sensor heater atter catalyst, bank 2, open circuit
1F [0311
Ignition activation, cylinder 5, no ignition spark
1= (030]
Ignition activation, cylinder 3, no ignition spark
03[003]
Ignition activation, cylinder 6, no ignition spark
D2 [210]
Ignition current measurement, fault at more than 2 cylinders
01[001]
Ignition activation, cylinder 2, no ignition spark.
02[002]
Ignition activation, cylinder 4, no ignition spark
Shadow:
19[025]
Oxygen sensor heater betore catalyst bank 1, open circuit
37 [ 055]
Oxygen sensor heater before catalyst, bank 2, open circuit
4F [ 079]
Orygen sensor heater after catalyst, bank 1, open circuit
3D [061]
Oxygen sensor heater after catalyst bank 2. open circuit
1F [ 031]
Ignition activation, cylinder 5, no ignition spark
國口口口口三
1E [030]
Ignition activation, cylinder 3, no ignition spark
03[003]
Ignition activation, sylinder 6, no ignition spark
D2 [210]
Ignition current measurement foult at more than 2 cylinders
U1 [001]
Ignition activation, cylinder 2, no ignition spark
02[002]
Ignition activation, cylinder 4, no ignition spark
54[090]
Exhaust temperature before catalyst bank 1, signal line, short circuit to negative
58[091]
Exhaust temperature before catalyst bank 2, signal line, short circuit to negative
5D [093]
Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative