Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CAVALIER LS, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 65 (ENGINE CONTROLS SELF-DIAGNOSTICS - 2.2L)DIAGNOSTIC TESTSDTC P0171: FUEL TRIM SYSTEM LEANCONDITIONS FOR RUNNING DTC
2001 Chevrolet Cavalier LS, 2.4 T
Conditions For Running DTC
2001 Chevrolet Cavalier LS, 2.4 TSECTION Conditions For Running DTC
WARNING: This page is about a different car, the 2003 Pontiac Sunfire, 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
- DTCs P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0125, P0131, P0132, P0133, P0134, P0201-P0204, P0300, P0301-P0304, P0325, P0341, P0446, P0502, P0503, P0506, P0507, P0601, P0602, P1133 or P1441 are not set.
- The ECT sensor parameter is 140-239Β°F (60-115Β°C).
- The IAT sensor parameter is -13 to 239Β°F (-25 to 115Β°C).
- The MAP sensor parameter is greater than 4.0 psi (28 kPa).
- The vehicle speed is less than 82 MPH.
- The engine speed is 550-3600 RPM.
- The BARO sensor parameter is more than 10.3 psi (72 kPa).
- The fuel ethanol composition is less than 88 percent.
- The Fuel Level sensor parameter is more than 9.8 percent.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.