Code PO171, mulitible possiblities for repair

65

Asked by Oct 19, 2012 at 11:30 AM about the 1998 Nissan Altima GXE

Question type: Maintenance & Repair

1998 altima, When car heats up has rough idle, engine light comes on and off, code PO171 comes up, says it can be oxygen sensor, fuel pump, fuel pressure regulator, air mass meter, leaky air intake, fuel injectors. changed oxygen sensor (front), light came back on, although car seems to run a little better.
What are the usual components in this case that fail.

2 Answers

254,025

http://www.obd-codes.com/p0171

18 of 18 people found this helpful.
Best Answer Mark helpful
65

This is very helpful, I'll do the checks this weekend and let you know.

5 of 5 people found this helpful.

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