Code issues

[Jason98]

I have a 2006 1500 4.7 V8. I got codes for p0700, p0300. Truck has new ignition coils and plugs with 6,000 miles. Truck runs sluggish and poor fuel economy. Took it into mechanic and said bad 02 sensor bank 1 sensor 1. Put a new catalytic and 02 sensors in maybe 2500 ago. Now getting a p0700 code. Need help any ideas?

 

[Nick_rp]

P0300: coils and plugs is a good start but 2 other common causes for misfires is injector problems or vacuum leak. Code dosent specify which cylinder so im leaning towards vacuum.

P0700: transmission control malfunction. this code may put you in limp mode, not positive, making it drive sluggish as you describe. This one may be difficult troubleshooting so you may want to take it in