DTC Troubleshooting: P0171, P2187 (2.0L Engine): Notes
DTC P0171 : Fuel System Too Lean DTC P2187 : Fuel System Too Lean at Idle
NOTICE:
Before you troubleshoot, review the How to Troubleshoot - Refer to: How to Troubleshoot the Fuel and Emissions Systems(2.0L Engine) or How to Troubleshoot the Fuel and Emissions Systems(3.0L Engine) .
NOTE:
- Do not clear the DTC or reset the PCM before beginning this troubleshooting procedure until instructed to clear it. Clearing the DTC or resetting the PCM can delete valuable diagnostic information, even if the on-board snapshot is saved.
- Inspect for aftermarket fuel system and engine components before beginning troubleshooting.