V-tec JUST KICKED IN!!!
I recently did the TTC on my 97 TT. I followed the instructions given on a Japanese Supra. I know that there is another instruction on MKiv tech files where you have to get one way check valves ( i did not do this). After the conversion was done, the car ran fine, and exhaust note is deeper. I boosted it and just like it described boost came on around 4000. On the next day , i floored it on 15.5 psi from 1st gear then through 2nd and it set off a check engine light. On the scan tool the description said it was a speed sensor/ auxillary input. I deletted the code then ran it on 15.5 pounds on different occassions and have not seen the code come back. Just to be sure i thought i ask here to see if anyone else had the same problem and should i be worried about it?