- Fuel Filter: Check the fuel filter and replace it if it is clogged or dirty. A clogged fuel filter can restrict fuel flow and cause the engine to run lean.
- Fuel Pressure: Check the fuel pressure and make sure it is within the manufacturer's specifications. Low fuel pressure can cause the engine to run lean and stall.
- Injectors: Check the fuel injectors and make sure they are spraying properly. Clogged or faulty injectors can cause the engine to run lean and stall.
- Ignition System: Check the ignition system and make sure the spark plugs are firing properly. Faulty spark plugs or ignition wires can cause the engine to run lean and stall.
- Air Intake: Check the air intake and make sure it is clear of any obstructions. A blocked air intake can cause the engine to run lean and stall.
If you have checked all of these things and the engine is still running lean, you may need to have the engine diagnosed by a professional mechanic.