Receiving OBD2 code P0123 code?

[Beastman]

I just replaced my throttle body, cleaned the TB, cleaned the IAC as well as checking it and the TPS with a multimeter and they both are showing readings that are good. There is no idle surge, it's idling perfect at stand still and driving (even full throttle) and there is no check engine light. The OBD2 reader is still reading code P0123 with the catalyst monitoring and oxygen heater monitoring lights flashing (the little black circles with the "c" and "oh" in them) and the amber light is lit up under the screen (three lights green=pass smog amber=maybe pass red=won't pass). Instead of ignoring the code or just erasing it, I'd like to fix the problem if you can help me.

Car= 98 Mitsubishi Eclipse RS MT

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Oh and by the way, I have a Modern Performance TB for sale!!!

 

[RedGST98]

have you tried clearing the code to make sure it will come back and its not just a glitch after all the cleaning?

Make sure the plug is fulling making contact as well...

 

[stars]

Well atleast it captures freeze frame data so that is good. Your code is the TPS, you need to either check it or replace it. I'm not sure what your code reader can give you as far as "live sensor" values from the throttle position sensor, if you can; Key in ON and Engine OFF, see if the value steadily increases as you accelerate and value decreases back down to 0 steadily. No jumps in values in either direction. Normally that code means a defective part is detected, but best to test it before your replace it. You can use a meter if you have one around.

 

[Beastman]

have you tried clearing the code to make sure it will come back and its not just a glitch after all the cleaning?

Make sure the plug is fulling making contact as well...

Worth a try, although the OBD2 was reading the same code before I changed out the TPS with a red light instead of amber.

Well atleast it captures freeze frame data so that is good. Your code is the TPS, you need to either check it or replace it. I'm not sure what your code reader can give you as far as "live sensor" values from the throttle position sensor, if you can; Key in ON and Engine OFF, see if the value steadily increases as you accelerate and value decreases back down to 0 steadily. No jumps in values in either direction. Normally that code means a defective part is detected, but best to test it before your replace it. You can use a meter if you have one around.

I used a multimeter to check bot IAC and TPS and there are no jumps...Lol it doesn't capture freeze frame, thats a pic I took with my iPhone.

Please keep the advice coming.