Parts for your 2013 Mazda Cx-7-Throttle position sensors

2013 Mazda CX-7 Throttle Position Sensor

Based on Mazda’s workshop manuals and MGSS technical information for the CX-7 platform, the vehicle runs electronic throttle control (drive‑by‑wire). The throttle body contains dual throttle position sensors (often called TP Sensor 1 and TP Sensor 2) built into the throttle actuator. So yes, a throttle position sensor is used on the 2013 Mazda CX-7, but it’s integrated into the throttle body rather than a separate bolt-on part. This setup is also reflected in relevant OBD-II diagnostics for the model, including TP-related codes such as P0121, P0122, P0221 and P2135.

For the 2013 Mazda CX-7, the throttle position sensors are there to tell the ECU exactly where the throttle plate sits at any moment. That live feedback lets the car balance fuel, spark and airflow smoothly, keeping the turbo or naturally aspirated engine responsive and efficient. Because the system is drive‑by‑wire, the throttle body contains both the electric motor that moves the plate and the twin position sensors that report its angle. The result is crisp throttle behaviour, stable idle and predictable power delivery in day‑to‑day driving.

There’s no scheduled replacement interval for the TPS on this model, and the sensors aren’t serviced separately from the throttle body. As part of regular servicing, it’s smart to keep the throttle bore clean. Every 40,000–60,000 km, a careful clean with throttle body cleaner can help prevent sticky throttle issues and lazy idle. Don’t force the throttle plate by hand, let the ECU do the moving. If the battery’s been disconnected or the throttle body was cleaned, an idle relearn with a scan tool can help the ECU recalibrate the throttle angle, keeping idle neat and tidy.

If the car throws a check engine light, hunts at idle, drops into limp mode, or hesitates on tip-in, scan it first. Codes like P0121 or P2135 point towards correlation faults between the two internal TP sensors. In those cases, diagnosis will determine whether there’s a wiring/connector issue, throttle body contamination, or a failed internal sensor. When the internal sensors fail, the fix is to replace the complete throttle body assembly, then carry out the appropriate throttle/idle learn. Genuine gaskets should be used, connectors inspected for corrosion, and the engine allowed to warm through a couple of normal drive cycles so the ECU refines its trims. With clean airways and a healthy throttle body, the CX-7 stays smooth, efficient and ready for long Kiwi or Aussie kilometres.

• Clean the throttle body every 40,000–60,000 km.
• Avoid forcing the throttle plate open by hand.
• Perform an idle/throttle relearn after cleaning or replacement.
• Replace the entire throttle body if internal TPS faults are confirmed.

Does the 2013 Mazda CX-7 have a throttle position sensor?

Yes. It uses two throttle position sensors integrated into the electronic throttle body. There isn’t a separate, external TPS to swap, it’s part of the throttle body assembly.

What are the common signs of a failing TPS on a CX-7?

Look for a check engine light, rough or high idle, hesitation on acceleration, limp mode, or poor fuel economy. Scan for codes like P0121, P0122, P0221 or P2135, which often point to TPS correlation or range issues.

Can the TPS be cleaned or replaced on its own?

The internal sensors aren’t serviceable separately. Cleaning the throttle bore can help with minor sticking, but if the TPS itself fails, the complete throttle body needs replacing, followed by an idle/throttle relearn with a scan tool.