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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 12 (ENGINE CONTROL SYSTEM - 2.4L - DTC P0010 TO DTC P0341)DTC P0171 OR P0172CIRCUIT/SYSTEM TESTING FOR DTC P0171
2006 Pontiac G6 GTP, 2D Coupe, Standard
Circuit/System Testing For DTC P0171
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Circuit/System Testing For DTC P0171
WARNING: This page is about a different variant/trim than selected.
- Allow the engine to reach operating temperature. With the engine running, observe the Long Term FT parameter with a scan tool. The value should be less than approximately 20 percent with the engine running at operating temperature.
- If the value is not less than 20 percent, inspect for the following:
- With the ignition ON and the engine OFF, observe the manifold absolute pressure (MAP) sensor parameter. The MAP sensor pressure should be within the range specified for your altitude. Refer to Altitude vs Barometric Pressure .
- If the MAP sensor does not indicate the correct barometric pressure, refer to DTC P0106 .
- Vacuum hoses for splits, kinks and proper connections
- Low fuel pressure
- Fuel contamination
- Properly functioning fuel injectors
- Missing, loose or leaking exhaust components from the HO2S forward
- Vacuum leaks at the intake manifold, the throttle body and the injector O-rings
- The air induction system and the air intake ducts for leaks or for a missing air filter element
- Evaporative canister purge lines plugged or obstructed
- The crankcase ventilation system for leaks
- The HO2S for proper installation and for electrical wires or connectors that may have contacted the exhaust system
- The HO2S signal circuit open, shorted to ground or shorted to the low reference circuit
- Malfunctioning engine components
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.