I'm having problems with rough running (mostly at low rpm's) and the car is throwing 02 sensor, EGR valve codes. O2 sensor has been replaced, the EGR has been removed and cleaned, the fuel filter has been replaced. It runs ok until the motor warms up and the ck engine light comes on. You can shut it down then restart and it will run ok for a while even if the motor is warm (again, until the light comes on). My mechanic has narrowed it down to "he thinks" the TPS. He says the voltage is all over the place when he tested it and everything else he can think of, checks out ok. Does anyone have any thoughts about the problem? Since Honda makes the TPS into the throttle body, we're looking for a whole TB. Will the TB from a 2.3 motor fit an h22a4? Are there any others that will fit? Is there a good place to find this part at a good price that anyone knows of?