i own a 99 si, with a b18c in it, i have a idle problem i have not been able to fix. my check engine light is on for 3 things, tps, idle air control system, and oxygen sensor. yesterday, i replaced the tps, throttle body, gasket, bled the cooling system, let the car warm up, and it still has this problem. heres a video, if you have the time please watch the whole video (about 50 seconds) so you can see what it does when i leave the car at idle. thanks.

also, sorry about the music, did not realize it was so loud.

http://www.youtube.com/watch?v=VBTim...ature=youtu.be

 

fix the cel's then go from there.

 

Has this been doing this since you swapped or just started? What is the O2 code, primary or secondary? Post the flash numbers or if you have a scanner the PXXXX code.

1) For the TPS make sure you don't have the MAP plugged into the TPS connector. The TPS should have Green/Red/Yellow wires.

2)For the IAC try cleaning it and making sure you have the right connector plugged in as well. The IACV connector colors I believe should be blue/black and Yellow/Black.

3)Post the O2 code and we can help a bit more.

 

secondary with the o2, i swapped the plugs on the tps and map to make sure, along with the iat sensor and iacv, everything stays the same. im begining to think i have a faulty ecu

 

hypothetically however, if the map and tps plugs were switched, wouldnt it throw a code for map sensor?