My daughter has a 2003 rsx and the dashboard emission indicator light is on. The car runs and idles fine. I thought it might be her gas cap was loose but alas that would have been too easy. My shade tree mechanic looked at it and said I needed to take it to the Acura dealer which is 1 hr. away. I called them and they said it will cost 583$ and 2 hrs. to fix. I read in this forum about an oxygen sensor and a MAP sensor. Is this what I need and do I need to just blow the day and 583$ ?

 

u got 2 air fuel ratio sensor------easy to change but u need to get under car. also, on the code u pulled up,, it should tell which one u need to change, either the 1st afr sensor or the rear. if ur in san francisco, i can change it for u for 60 bucks.

 

thanks cruzalekz. I figured it was the primary O2 sensor so I bought one [$195] and installed it sat. Worked great and that irritating light is history! Took me about 30 minutes and the dealership was going to charge 1.5 to 2 hrs. labor. Maybe I have a future in automotive repair? Again thanks for your advice

 

it should tell which one u need to change, either the 1st afr sensor or the rear. if ur in san francisco, i can change it for u for 60 bucks.

 

When I was chasing down the 1166 air-fuel ratio issue on my RSX, I realized how little the factory pillar sticker or even the dealer’s printout actually tells you about the car’s original setup — they list the basics, but a lot of the build-specific details that matter for diagnosing fuel and sensor problems just aren’t there or don’t match what’s on the car anymore. The only time I got a clear picture of what my car actually left the factory with was after running through monroney sticker lookup https://carfast.express/en/window_sticker it pulled the full build data, including the exact engine configuration and option codes, which made tracking down the right parts way easier than relying on old stickers or dealership summaries.