Question Asked: what does these 2 code definitions mean?
February 12, 2014, 04:37 PM
Catalyst System Bank 1 Low Efficiency
HO2S-11 (Bank 1 Sensor 1) Circuit Low Input
Thanks in advance for any help given.
Question Asked: P0304 code - cylinder 4 misfire?
October 16, 2013, 07:55 PM
I switched coil pack and that did not correct it I also put a new spark plug in it, even though I put 4 new ones in back in May, and that did not correct the problem. Can some one give me some help on what might be causing this code? The engine is skipping a small amount(not bad) at idle. Thanks very much in advance.