MattChadwick
Member
My 5.4 that I've only had for about 200 miles started randomly misfiring in cylinders 2,3, and 4. It has a very loud engine knock, sounds almost like a diesel at this point. I'll be driving down the road and the engine will lose practically all power, but eventually will gain it back. It started giving me a blinking engine light, so I got the codes read and it gave me plenty to ponder on. For the record, I changed the Camshaft Position Sensor and VCT solenoid and neither has worked so far. Here's the codes I got:
P0172 Bank 1 too rich
P0174 Bank 2 too lean
P0300 Random Misfire
P0302 Misfire Cyl 2
P0303 Misfire Cyl 3
P0304 Misfire Cyl 4
P0340 Cam Sensor Bank A
P0344 Cam sensor intermittent
P2916 O2 sensor stuck rich B1S1
P0138 O2 circuit high voltage B1S2
Obviously, I have a feeling that it's the O2 sensors, but why would both sensors go bad at the same time? Any insight helps. Thanks.
P0172 Bank 1 too rich
P0174 Bank 2 too lean
P0300 Random Misfire
P0302 Misfire Cyl 2
P0303 Misfire Cyl 3
P0304 Misfire Cyl 4
P0340 Cam Sensor Bank A
P0344 Cam sensor intermittent
P2916 O2 sensor stuck rich B1S1
P0138 O2 circuit high voltage B1S2
Obviously, I have a feeling that it's the O2 sensors, but why would both sensors go bad at the same time? Any insight helps. Thanks.