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Parts for your 2007 Suzuki Sx4-Throttle position sensors
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2007 Suzuki SX4 Throttle Position Sensor (TPS) — What it Does and How to Look After It
The 2007 Suzuki SX4 is fitted with a throttle position sensor. Factory literature confirms it’s part of the engine management strategy. The Suzuki SX4 Factory Service Manual for 2007 (Engine Control/ECM diagnostics) lists TPS-related diagnostics and fault codes (e.g., P0120–P0124), and aftermarket data sources like AllDataDIY and the Haynes SX4 Repair Manual also describe TPS checks and replacement. On most SX4 variants (J20A 2.0L and M16A 1.6L), the TPS is integrated into the electronic throttle body, while the accelerator pedal uses a separate pedal position sensor.
On this model, the TPS reports the exact angle of the throttle plate to the engine control module. That live feedback helps the ECU trim fuel, spark and idle speed, keeps emissions tidy, and makes throttle response feel smooth and predictable. If the TPS signal goes flaky, owners often notice flat spots, hunting idle, poor fuel economy, hesitation, or the MIL lighting up with a TPS circuit code.
Because the TPS is commonly built into the throttle body on the 2007 SX4, it’s not always serviced as a standalone part. Shops will typically test the wiring and signal first, then replace the whole throttle body assembly if the sensor is confirmed faulty. After replacement, a throttle relearn or idle air volume learn is usually required so the ECU knows the new blade position. That procedure is outlined in the Suzuki service manual and in data providers like AllDataDIY.
Good servicing habits help the TPS live a long, drama-free life:
- Keep the throttle body clean. A gentle clean of the bore and plate with throttle-body-safe cleaner every 40–60,000 km can prevent sticky operation that stresses the sensor.
- Inspect the connector and loom. Look for green crusties, broken locking tabs, and chafed wiring near the throttle body.
- Scan before you spanner. If there’s a code like P0121 or P2135, follow the test plan rather than guessing parts.
- Do the relearn. After battery disconnect or throttle body replacement, complete the throttle/idle learn so it idles and drives properly.
When fitted correctly and paired with a clean, free-moving throttle blade, the SX4’s TPS delivers crisp take-off and steady cruising. If replacement is needed, using a quality throttle body and following the relearn steps will keep the little Suzuki feeling spot-on.
Popular questions about 2007 Suzuki SX4 throttle position sensors
Is the TPS separate or part of the throttle body on a 2007 SX4?
On most 2007 SX4s, the TPS is integrated into the electronic throttle body and isn’t sold separately. Workshops generally replace the complete throttle body if the TPS fails, then perform a throttle/idle relearn. Parts catalogues and workshop data back this up for both J20A and many M16A variants.
What are the common symptoms of a failing TPS on this model?
Owners usually report hesitation on take-off, erratic idle, stalling when coming to a stop, surging, poor fuel economy, and a check engine light. Scan tools often show codes like P0121–P0124 or P2135. Always check the harness and throttle cleanliness before calling the sensor.
Does the SX4 need calibration after TPS or throttle body work?
Yes. After throttle body replacement or certain battery disconnects, a throttle position/idle learn is recommended. The procedure ensures the ECU recognises closed and open positions correctly, restoring smooth idle and throttle response.
