- Fuel filter: Replace the fuel filter if it is clogged or dirty.
- Spark plugs and wires: Check the spark plugs and wires to make sure they are functioning properly and delivering the correct amount of spark to the engine.
- Oxygen sensor: Check the oxygen sensor to make sure it is functioning properly and providing the correct feedback to the engine control unit (ECU).
- EGR valve: Check the EGR valve to make sure it is functioning properly and recirculating the correct amount of exhaust gas back into the engine.
- Vacuum leaks: Check for any vacuum leaks in the engine compartment, as these can cause the engine to run lean and cause popping and sputtering.
- Compression test: Perform a compression test to check the condition of the engine's cylinders and piston rings. Low compression can cause the engine to run poorly and lose power.
