Hope all is well with you...
My Honda Civic 2005 Vti was giving me RPM Stability issue on Petrol as well as CNG. I tuned up my car, cleaned Throttle Body (which was filled with carbon), Set Tappits, Cleaned coils and aprk plugs, etc. After all this, she is just like a killer on the road. But still same race issue persists. I think either it needs to be change TPS Sensor or Throttle Body + TPS both. Kindly suggest me Individual prices for both and where can I get these from Karachi.