VW Taigo: Throttle Body Causing Sluggish Performance

Had a similar issue with a 2019 VW T-Cross. The symptoms matched exactly, sluggish response, delayed throttle reaction, and check engine light. The throttle sensor was failing, causing irregular air flow readings which put the engine into limp mode as a safety measure. The throttle body assembly contains multiple electronic components including the throttle position sensor. When it starts failing, the engine control unit receives incorrect data about pedal position and air flow, leading to poor engine idling and performance issues. This required replacement of the complete throttle body unit. Not a complex repair but definitely needs proper diagnostic equipment to verify the issue and reset the system afterward. The repair took about 2 hours at the shop. The throttle sensor issue is considered serious since it affects both engine performance and safety. If left unaddressed, it can cause complete power loss while driving. Would recommend getting it checked soon rather than continuing to drive with these symptoms. Important to note, after repair, the system needed proper calibration using manufacturer-specific diagnostic tools to ensure correct throttle response and engine idling.

Thanks for detailed info on the throttle body repair. Facing almost identical issues with my Taigo right now, poor air flow and engine idling problems. Your description matches my symptoms perfectly. Did unusual response delays clear up completely after the fix? Also curious about the total repair cost on yours and if youve had any recurring issues with the air intake system since then?

Since fixing the throttle valve defect, the response delay issues cleared up completely. The repair cost was 265€ for the faulty accelerator pedal module and related electronics. The fuel efficiency returned to normal and engine idling has been smooth ever since. The mechanic confirmed the throttle body sensor was sending incorrect signals, causing the erratic performance. After installing the new components and running a complete system calibration, the check engine light went off and hasnt returned. No recurring problems with the air intake system in the 6 months since the repair. The throttle response is now instant and consistent, exactly how it should be from the factory. Based on how similar your symptoms sound, you might be dealing with the same issue. Important to note the repair included a full electronic diagnostic reset to ensure all systems were properly synchronized. This extra step is crucial for optimal performance after component replacement.

Finally got the issue sorted at a new mechanic shop. Just like you mentioned, it was the throttle sensor causing all the trouble. The response delay and rough idling were driving me crazy, but the repair fixed everything. Total bill came to 290€ including parts and labor, which seemed fair given the work involved. The mechanic showed me the old throttle body, pretty obvious wear on the electrical connections. They did a full computer reset after installing the new unit and the difference was immediate. Engine runs smooth now, no more limp mode issues, and fuel efficiency is back to normal. Glad I didnt wait longer to fix it. The whole job took about 3 hours, but definitely worth it to have proper throttle response again. Will keep an eye on the air intake system, but so far everything feels like new.