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Parts for your 2011 Mazda Cx-7-Throttle position sensors
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2011 Mazda CX-7 Throttle Position Sensor (TPS)
Technical sources confirm the 2011 Mazda CX-7 does use a throttle position sensor. In Mazda’s 2011 CX-7 workshop manual (Engine Control System), the throttle position (TP) signal is described as being built into the electronic throttle body. Mazda’s OBD-II diagnostics also list TP-related DTCs (such as P0121–P0123 and P2135) for this model. Genuine parts catalogues for the CX-7 show the throttle body assembly includes the non-serviceable TP sensor, meaning the sensor is integrated and replaced with the throttle body as a unit.
On the 2011 CX-7—whether the 2.5L petrol or the 2.3L DISI turbo—the throttle is “drive-by-wire”. That means there’s no cable, the accelerator pedal uses APP sensors, and the throttle body uses one or two internal TP sensors to report blade angle to the ECU. The ECU then balances pedal demand, throttle angle and airflow to keep the engine smooth, efficient and compliant with emissions rules.
What does the TPS actually do here? It constantly tells the ECU how far the throttle plate is open. That data is critical for fuel injection timing, ignition advance, idle stability and kickdown feel. If the TP signal is dodgy, you’ll often feel surging, flat spots, stalling at idle, or get limp-home mode and a MIL light.
- Common clues it’s unhappy: erratic idle, dead spots on light throttle, poor fuel economy, and codes like P0121, P0122, P0123 or P2135.
- Quick checks: with a scan tool, watch TP% move smoothly from closed to wide open, any sudden jumps or dropouts suggest a fault.
Servicing tips for throttle-position-sensors on a CX-7 are really throttle body-focused, because the sensor is integrated. There’s no separate TPS to unbolt. If cleaning carbon from the throttle bore, avoid flooding the shaft area and never pry at the sensor housing. Use throttle-body-safe cleaner and a lint-free cloth, engine off, then allow an idle relearn.
- If replacement is needed, order the correct throttle body for your VIN (2.3T and 2.5L differ). Replace the gasket and torque fasteners to spec.
- Perform an idle/throttle relearn. A proper scan tool routine is best. Some technicians will key-on/key-off, then idle the engine without loads (A/C off, steering straight) until warm to let trims settle.
- Clear stored DTCs and verify smooth TP% tracking and stable idle.
Look after it by keeping the air filter fresh, fixing vacuum leaks promptly, and cleaning the throttle body every 60–100,000 km if driving conditions are dusty or mostly short trips. That small bit of care helps the TPS deliver crisp response and reliable shifting behaviour under the bonnet.
Popular questions about 2011 Mazda CX-7 throttle-position-sensors
Does the 2011 CX-7 have a separate, replaceable TPS?
No. The throttle position sensor is integrated into the electronic throttle body on both the 2.5L and 2.3L turbo engines. If the sensor fails or shows erratic readings, the fix is typically a complete throttle body replacement, followed by an idle/throttle relearn with a scan tool.
What are the signs my CX-7’s TPS is failing?
Expect unstable idle, hesitation on light throttle, surging, poor fuel economy, and sometimes limp mode. The check-engine light may log codes like P0121, P0122, P0123 or P2135. Watching the TP% on a scan tool while slowly opening the throttle should show a smooth increase—any spikes or flat spots point to trouble.
Do I need to program anything after replacing the throttle body/TPS?
Yes. A throttle/idle relearn is recommended. Many scan tools can run the procedure. Without it, the idle may hunt or the response can feel off until the ECU relearns. After installation, clear codes, perform the relearn, then road test to confirm stable idle and linear throttle response.
