I got the engine codes P1128 and P1129 on my 2009 Dodge Ram 1500 3.7L. What are these codes?
Hi there
These codes mean the engine isn't achieving closed-loop on bank 1 and bank 2
P1129 DODGE - Closed Loop Fueling Not Achieved Bank 2 Read more: https://www.autocodes.com/p1129_dodge.html
P1128 DODGE - Closed Loop Fueling Not Achieved Bank 1 Read more: https://www.autocodes.com/p1128_dodge.html
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