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Jerry, Master Mechanic
Category: Dodge
Satisfied Customers: 17220
Experience:  ASE Master tech, 30 years exp. troubleshooter, driveability tech
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1995 Dodge Neon: The actron computer indicates that it is code P0171

Resolved Question:

I have a 1995 Dodge Neon. The actron computer indicates that it is code P0171. What do we do?
Submitted: 9 years ago.
Category: Dodge
Expert:  Jerry replied 9 years ago.
HiCustomer Super mechanic here. The trouble code that you are getting is an indication that the engine is running lean. What you can do if it is running without any noticeable problems is, check for vacuum leaks around the throttle body. Clean the throttle body. Add some fuel injector cleaner to the gas tank when you fill up. And it may be due for a tune up. Then clear the code and see that it doesn't come back. Let us know if you need any further assistance, thanks.
Customer: replied 9 years ago.
Do I need to change the oxygen sensor? If so, which one?
Expert:  Jerry replied 9 years ago.

That is very possible. If you can't scan it and see what it is doing, it could be that it is just getting lazy. Most car companies say to change them at around 65000 miles on the average. (most of us don't though)

It would be the one that is the closest to the engine.

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