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.
Throttle Position Sensor: Locations
1991 Hyundai Sonata V6-3.0LSECTION Locations
DRAIN PLUG
The fuel tank drain plug is located at the lowest point on the fuel tank.
EGR VACUUM SOURCE
The EGR vacuum source is located on the throttle body.
FUEL ACCUMULATOR
The Fuel accumulator is mounted to the forward wall of the fuel tank.
FUEL FILTER (IN-LINE)
The In-line fuel filter is located on the firewall.
FUEL PRESSURE REGULATOR
The Fuel pressure regulator is mounted on the fuel rail.
FUEL PUMP
The fuel pump is located inside the fuel tank mounted on the forward wall of the fuel tank directly under the connector.
FUEL PUMP DRIVE TERMINAL
The fuel pump drive terminal (shown hooked-up) is located on the right side of the engine compartment behind the air cleaner housing.
FUEL PUMP HARNESS CONNECTOR
The fuel pump harness connector is located on the forward end of the fuel tank.
FUEL RAIL
The fuel rail is mounted to the intake manifold.
INJECTORS
The injectors are mounted between the fuel rail and the intake manifold.
OVERFILL LIMITER (TWO-WAY VALVE)
The overfill limiter is mounted in-line, in the vapor line, at the forward end of the fuel tank.
PURGE HOSE VACUUM SOURCE
The Purge hose vacuum source is located on the throttle body.
ROLLOVER VALVE (FUEL CHECK VALVE)
The rollover valve is mounted to the forward wall of the fuel tank.
THROTTLE POSITION SENSOR
The throttle position sensor is mounted on the throttle body.
Fuel Tank Drain Plug:
The fuel tank drain plug is located at the lowest point on the fuel tank.
EGR VACUUM SOURCE
EGR Control Vacuum Source:
The EGR vacuum source is located on the throttle body.
FUEL ACCUMULATOR
Fuel Accumulator And Rollover (Check Valve) Location:
The Fuel accumulator is mounted to the forward wall of the fuel tank.
FUEL FILTER (IN-LINE)
In-line Fuel Filter Location:
The In-line fuel filter is located on the firewall.
FUEL PRESSURE REGULATOR
Fuel Pressure Regulator Location:
The Fuel pressure regulator is mounted on the fuel rail.
FUEL PUMP
Electric Fuel Pump And Fuel Gauge Connectors:
The fuel pump is located inside the fuel tank mounted on the forward wall of the fuel tank directly under the connector.
FUEL PUMP DRIVE TERMINAL
Fuel Pump Drive Terminal:
The fuel pump drive terminal (shown hooked-up) is located on the right side of the engine compartment behind the air cleaner housing.
FUEL PUMP HARNESS CONNECTOR
Electric Fuel Pump And Fuel Gauge Connectors:
The fuel pump harness connector is located on the forward end of the fuel tank.
FUEL RAIL
Fuel Rail And Injectors:
The fuel rail is mounted to the intake manifold.
INJECTORS
Fuel Rail And Injectors:
The injectors are mounted between the fuel rail and the intake manifold.
OVERFILL LIMITER (TWO-WAY VALVE)
Overfill Limiter Location:
The overfill limiter is mounted in-line, in the vapor line, at the forward end of the fuel tank.
PURGE HOSE VACUUM SOURCE
Purge Hose Vacuum Source:
The Purge hose vacuum source is located on the throttle body.
ROLLOVER VALVE (FUEL CHECK VALVE)
Fuel Accumulator And Rollover (Check Valve) Location:
The rollover valve is mounted to the forward wall of the fuel tank.
THROTTLE POSITION SENSOR
Throttle Position Sensor (TPS) Location:
The throttle position sensor is mounted on the throttle body.
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.