So i got these codes after plugging in my oBDII scanner.

P1164
Seems like that code is O2 sensor or ECM.
Will be replacing the O2 sensor? Just purchased DENSO 234-4620 to replace the primary O2 sensor.
Hopefully this will fix this damn code.

P1486
Thermostat issue or little fluid in the radiator.
CHecked the radiator to make sure its topped off and also the reserve is filled to full. Seems like this will be a thermostat issue. Been checking around and it seems like it will be 50/50 chance.

if you guys have any suggestions for any of the codes please go ahead and chime in.

 

Prior to replacing the new sensor and new thermostat I plugged in my OBD reader and only P1486 was showing and no P1164 codes.

I installed the new O2 sensor and the new thermostat. Reset the codes and started the car up. I let it ran for a good 5 mins. a new code showed up. P1167 was showing now. I once again reset the comp and after the car was running the check engine came back on.
I went ahead and checked online that the o2 sensor that i got was not for a ULEV motor. I missed the ULEV sign on the valve cover and didn't purchase the right O2 sensor.
Since I have a ULEV motor, what sensor do I need?
I went ahead and put back the old sensor and reseted the computer. After running for a good 10 mins. with the AC on and running the heater on for a good 5mins. NO check engine light came on.
SO it seems that the P1486 was fixed with a new thermostat. Now Im in search for a new O2 sensor for the ULEV motor.


Here is my engines detail.

Type: Aluminum Alloy: In-Line 4
Displacement (liters): 2.3
Horsepower @ rpm (SAE net): 150 @ 5700*
Torque (lb.-ft. @ rpm): 152 @ 4900*
Compression Ratio: 9.3: 1
Valve Train: SOHC: 16-Valve VTEC™
Fuel System: Multi-Point Fuel Injection
Ignition System: Electronic w/Immobilizer

* 148-hp @5700/148 lb.-ft. @4900 ULEV-rated engine available in California and parts of the Northeast.