Check for sensor new doesnt mean free from defects --improper install or circuit problem / damage to harness
How soon did the error code come on?
Couple things to check
1.) loose or bad Gas Cap systems are sealed now for pressure if your cap is loose it may through a code on some models.
2.) ***Are you putting in E-85 fuel in a NON-E-85 rated car? That is a No.. NO.... NOOO... reason your system needs to be beefed up as more Alcohol means you need a different computer to adjust for it and fuel system in general.
Hope I helped
There are two sensors on each bank. One before and one after the catalytic converter. Did you change the correct one?
SOURCE: My check engine light stays on.
You can take your car to Auto Zone and they will scan the codes for FREE. They will also let you know the part causing the problem. 99% of the time it's a sensor that you may be able to replace yourself if your handy with cars. Without the codes, it's random guessing to fix the problem.
SOURCE: Where is bank1 sensor 1 (O2 sensor) of 2003 Mitsubishi Eclipse
if its a 4 cylinder it will the 02 sensor closest or if not in the exhaust manifold
SOURCE: 2001 Honda - New Catalytics & O2 sensors -- new 0420/1739/1456
I would send the car for a smoke test for the emissions leak...Find out where the leak is comming from..Repair it..Reset the codes, then do a drive cycle and see what happens...
SOURCE: reset ems (check engine light) on ford expedition
Try to remove positive baterry terminal for 20 minutes and install it nack. That will reset your ECU and it will run little rought tilll learn new change in 02 sensor.
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