2006 Honda Odyssey with engine codes P0175 and P2229

Question

My mechanic checked this code -- found nothing. Also P2229 he checked and still found nothing. ??? I've had a lot of repairs on the vehicle and anytime someone checks what the codes indicate, they found nothing. Car runs perfectly fine. Should I try buying a new gas cap -- just to see? Air filter is clean. Suggestions w/o going to a Honda Dealership?
Thank you.

Answer 1

P0175 means too much fuel and not enough air. Its possible the air to fuel ratio sensor is bad (bank 2 sensor 1)

I would check fuel pressure (should be 55 psi - 63 psi at idle), if the fuel pressure is good you may need to get the valves adjusted. 

 

for P2229 check the connections to the PCM 

Answer 2

P0175 HONDA - Fuel System Too Rich Bank 2
Read more: https://www.autocodes.com/p0175_honda.html

P2229 HONDA - Barometric Pressure Sensor Circuit High Voltage
Read more: https://www.autocodes.com/p2229_honda.html