P1128 Dodge - grand caravan 3.3 l

Question

Engine lights on.
van jerks while driving
codes p0420
p1128

Answer 1

P1128 Closed loop fueling not achieved Bank 1

P0420 Catalytic belw efficiency Bank 1

Neither one of these code condition will cause the vehicle to jerk while driving,these code are result .What you can be dealing with would be a misfire condition that intermittent .

Comments

I have the 2 same too code with the same problem. The have jerks and feel like it's going to shut off. Did you get it fixed?