i have a problem with my astra mk4 2001 8v z16se engine.
at first i thought it was a head gasket so ive replaced that due to comtaminated oil.
now i have read the car ecu it came up with the fault codes
P0300 Misfire Unidentified Cylinder Detected B-21
P0201 Cylinder 1 injector circuit high C-23
P0201 Cylinder 1 injector circuit low C-23
P0204 Cylinder 4 injector circuit high C-26
P0204 Cylinder 4 injector circuit low C-26
P0110 Intake Air Temperature Circuit High Input C-12
P0110 Intake Air Temperature Circuit Low Input C-12
ive change injector 1 and 4 with no luck.
spark plugs are working to these ive checked.
is my ecu broke?
the car keeps misfiring and stalls when warm please help me put this to bed.