Alright, well the pedal has been sticking a little bit on my 2000 si so i decided to clean the throttle body. I used the right cleaner and everything and the next day the CEL comes on. Right when it comes on the car starts to act funny. It doesnt idle bad or rev up and down but whenever your trying to take off/rev up the car its liek the rpms rev up and just drop off. I can cut the car off and back on and the car will run fine and then a little while later it will do it again. Ive already changed out the IAC valve and the map sensor. I talked to the guy who had the car before me and he said the exact same thing happened with him twice, and he took it to the dealership and had the sensor replaced both times but doesnt know which one it was. Anybody had this happen/heard of this happening?

 

What code is it?

 

i think its throwing P0505? Idle Code

 

check all the sensors that run to the PCM (vehicle speed sensor, coolant temp. sensor, air conditioning sensors, power steering pressure sensor, etc.) because the PCM adjusts the idle based on the info it receives from these sensors. You can do visual checks on the sensors to check for damage or corrosion. But make sure you check for vacuum leaks too.

 

haha i just read what u said on another forum

 

I totally copied it