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OnlineHelp, Mechanic
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1997 Chrysler Sebring: Possible causes for engine light p0171

Resolved Question:

Possible causes for engine light p0171 for a 1997 Chrysler Sebring Convertible with 2.5 engine?
Submitted: 8 years ago.
Category: Car
Expert:  OnlineHelp replied 8 years ago.

Hello and thank you for choosing Just Answer.

I would suggest that you take a look at the front oxygen sensor. Typically speaking the oxygen sensor causes this code to appear. Here is the possible cause list from the manual for your car.

Trouble Code: P0171 (2.5L V6 Auto)
Fuel System Lean (Bank 1)

Possible Causes:

  • Air leaks in intake manifold, exhaust pipes or exhaust manifold
  • Base engine mechanical problem causing a lean A/F condition
  • Fuel control Sensor is out of calibration (e.g., ECT, IAT or MAP)
  • Fuel delivery component fault (clogged filter, low fuel pressure)
  • O2 element is contaminated, deteriorated or it has failed
  • Vacuum hose is disconnected, broken, leaking or loose
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