Sluggish Suzuki Wagon R Needs Throttle Valve Fix

Had similar issues with my 2008 Suzuki Swift with 210000 KM. The engine idle was unstable and throttle response got increasingly worse over time. The throttle position sensor was malfunctioning, causing incorrect readings to the engine control unit. After throttle cleaning did not resolve the issue, diagnostic tests confirmed a defective accelerator pedal module. The repair involved replacing the complete throttle body assembly and control valve. This is a serious repair that requires proper diagnostic equipment and expertise, as incorrect installation can cause ongoing drivability issues. The job took about 4 hours at the shop. After replacement, fuel consumption returned to normal and the engine idle stabilized. The throttle response became crisp again, especially during cold starts. Important: If experiencing these symptoms, avoid driving the vehicle extensively as it can cause additional engine damage. The erratic fuel delivery can also lead to catalytic converter issues if left unaddressed. Recommend getting it checked by a shop with experience in electronic throttle systems, as this repair requires specific diagnostic tools and expertise.

Thanks for sharing your experience with the throttle body repair. Really helps to know what parts needed replacement in your case. The symptoms match exactly what I am experiencing with my Wagon R, especially the poor throttle response and high fuel consumption. Would you mind sharing how much the complete repair cost you? Also curious if you had any recurring issues with the air intake or control valve since the fix? My local shop quoted a high price and I want to make sure I am not overpaying for the work.

Had the repair done last week and can confirm the throttle valve issue is now completely resolved. The engine idle is smooth and throttle response feels like new again. Total cost was 205€ for fixing the defective accelerator pedal module, which included parts and labor. This price seems fair given the technical nature of the repair and the specialized diagnostic equipment needed. No recurring issues with the control valve or air intake system since the fix. Fuel consumption has returned to normal levels and the engine throttle performs consistently, even during cold starts. The investment was worth it considering the risk of additional engine damage from running with a faulty throttle body. My advice would be to proceed with the repair at a shop that specializes in electronic throttle systems, as proper diagnostic testing is crucial for this type of work.

After dealing with my Wagon Rs throttle issues, I finally got it fixed at a certified shop. Had my doubts at first about the 280€ total cost, but the thorough diagnostic testing showed multiple problems with the throttle body assembly. The mechanic found both the control valve and throttle position sensor were failing. They also discovered carbon buildup affecting the throttle valve operation. Complete job took about 5 hours including testing. After the repair, the difference is remarkable. Engine starts smoothly, throttle response is back to normal, and fuel consumption dropped significantly. No more hesitation during acceleration or rough idling. The shop showed me the old parts and explained everything clearly. While the price was higher than expected, seeing the complexity of the electronic throttle system and the work involved made it worth every euro. Much better than risking further engine damage from a poor repair job. Thanks for the advice everyone. Would definitely recommend getting these issues fixed properly rather than trying cheaper alternatives.