I keep getting a catalytic efficiency code p0420 and a Downstream fuel trim system 1 lean p2096 code. The codes come in and out. My truck has 5493 miles on it. Iam not sure why they come and go. Has anyone had this problem?
I keep getting a catalytic efficiency code p0420 and a Downstream fuel trim system 1 lean p2096 code. The codes come in and out. My truck has 5493 miles on it. Iam not sure why they come and go. Has anyone had this problem?
