The fuel filter prevents dirt and debris from entering the fuel system. Over time, the fuel filter can become clogged, restricting fuel flow and causing the car to lose power when accelerating.
Faulty Fuel Pump
The fuel pump supplies gasoline to the engine. A faulty fuel pump can deliver insufficient fuel to the engine, causing the engine to lose power.
Dirty or Clogged Mass Air Flow Sensor
The mass air flow (MAF) sensor measures the amount of air entering the engine. A faulty MAF sensor can send incorrect signals to the engine control unit (ECU), which can result in the engine losing power.
Faulty Oxygen Sensor
The oxygen sensor monitors the amount of oxygen in the exhaust gases. If the oxygen sensor is faulty, it can send incorrect signals to the ECU, which can cause the engine to run lean and lose power.
Failing Spark Plugs
Spark plugs provide the spark that ignites the fuel in the cylinders. If the spark plugs are worn or fouled, they can misfire, causing the engine to lose power.
Ignition Coil Problems
The ignition coil provides the electrical energy that powers the spark plugs. If the ignition coil is faulty, it can deliver insufficient energy to the spark plugs, causing misfiring and power loss.
Air Intake System Leaks
A leak in the air intake system can allow unmetered air into the engine, which can cause the engine to run lean and lose power.
Exhaust System Restrictions
A restricted exhaust system can prevent the engine from exhaling properly, which can reduce power and cause the engine to run hot.
Vacuum Leaks
A vacuum leak can cause a variety of problems, including engine performance loss. Vacuum leaks can be caused by damaged hoses or seals.
Clogged Catalytic Converter
A clogged catalytic converter can create excessive exhaust restriction, which can rob the engine of power.
Turbo or supercharger problems
If your Mazda RX-7 has a turbo or supercharger, it could be losing power due to a boost leak, a damaged wastegate, or a faulty air-to-air intercooler.
Engine Mechanical Issues
If the car is experiencing severe loss of power, it is important to have the engine inspected for possible mechanical issues such as worn piston rings, damaged valve springs, or a faulty turbocharger.
