Quote Originally Posted by roy_roger View Post
Well, my car has symptoms of a bad TPS, such as jerking at first gear, hesitating/poor acceleration, poor fuel economy (6.5km/l), sudden stalling, hard shifting, rough idle, but I wonder why the check engine light is not blinking. I will try to have an OBD test shortly.

But now that I know of the excessively high price of the tps, I have seconds thoughts kahit ma-confirm pa ng OBD test na sira ang TPS.
A surprising thing happened when I removed the air temperature sensor located on the hose connecting the air cleaner assy to the throttle, which left a hole about 1-1/2" in dia. The engine suddenly ran smoothly and silently at idle. So, I did not put the sensor back into place. Instead, I covered the hole with foam. Then I drove the car and guess what I experienced - more power and better acceleration.