Questions & Answers for: Dodge Ram do loop codes

...disconnect the connector. Find out the proper resistance specs for the O2 and get a resistor, loop it into the signal side of the o2. Thats going to save you big $$$ i THINK THAT CODE MEANS

have error codes 1128 and 1129 what causes these codes P1128 - Closed Loop Fueling Not Achieved - Bank 1 P1129 - Closed Loop Fueling Not Achieved - Bank 2 Found for 2007 Dodge Ram 1500 5.7L

...codes from time to time. Some times when just starting, other times went restarting , engine warn but not in closed loop. Have replaced all o2 sensors.Code will sent and when cleared will run 600 ...

...scan tool they cost $7 now;.(with any relic Laptop as the screen) if the ECU does not hold closed loop at idle hot. then fix that first. or if sensor fail and you have DTCs report all of them. and ...