Changed Air Fuel Ratio Sensor In 2008 Honda Civic?

So we changed the O2/AFR sensor in our 2008 Honda Civic Sedan after having the car read and getting a p1172 (I think) code. On the reading it said "Faulty AF sensor" so we replaced it. The check engine light is still on but it runs smoother and gets better gas mileage than it ever has since we've had it! Code still shows up on the reader. Is it fine or should I look more into it? I got it up to 55 and 70 and it was running way smoother than it did before by a long shot. Should I worry with it? Can the check engine light be reset?

Added (1). Not a lot of exhaust either just the normal regular amount. It was LITERALLY just replaced 2 hours ago. (the AFR sensor) Does it take a while for it to click/register or what?

What is a good car for a college student?

This is my second year of college and finally going to buy a car! I'm 20 years old, turning 21 in august 11, 2015. I had my license for only a couple of months, like 3 months. Any recommendation? 350z? G35? Honda civic? Mazada 3? Anything that looks nice and appealing. Cheap to insure and pretty face. Thank you! I live in California, Los Angeles.

Added (1). I don't know why I typed pretty face. Just ignore.

How to lower my car payment?

So I own a 2008 2-door Honda Civic coupe. The full payment for it is around $11,000 and roughly $373 monthly. At the time when I bought the car I really had no better options and had to make hasty decisions. Now that everything has smoothed out I find it ridiculous to be paying so much for a 2008. I'm 18 so my credit isn't this best (but its not bad) and because of that my mom said re-financing is out of the question. I also thought of trading it in but I already know that no company will want a 2008 that cost almost eleven-thousand. I pay on it faithfully and the monthly payment isn't the problem, its the fact that a used older car is costing me more than a newer model would. Is there any way I can lower the payment or trade it in?

2014 Subaru BRZ or 2014 Honda Civic Si?

Okay so I'm a 17 year old senior in highschool and I'm looking to get a new car. I've been searching for a while and I've come down to 2 cars. 2014 Subaru BRZ and 2014 Honda Civic Si sedan. They both have 7000 miles on them. Both are the same price (the BRZ a couple hundred more) but not significant amount. Both 6-Speed manuals. Both get the same MPG. I just can't decide which one I like more. Me being a 17 year old the cool little things go a long distance. Like the civic has pusy button start. And a nice sound system and room to carry friends. But the Subaru is just so much cooler looking. And I just love it. What do you think? Or if you think another car would be better please tell me.

Rainwater seeping into my Honda Civic? Why? How to fix?

I have a 2000 Honda Civic. And for about 6 months now I've noticed that rain water is coming in through an opening on the driver-side floor board. After it rains there appears to be a bit of water soaking my floor board. Maybe about 12-24 ounces. I tried to pull up the carpet and padding but it was attached pretty good and i didn't want to get to a point where i couldn't put it back together. And I tried to look underneath the car where the floorboard may have a hole. Didn't see any thing. I'm thinking its maybe coming from water running down from the windshield, but it the water only forms in the middle-left, which kinda eliminates it trickling down that way. Is there a channel or something that displaces rain water that I'm not aware of where it would seep up like mine?

Should I buy and fix this Honda Civic?

I was offered by a very trusted mechanic who's a friend a 1999 Honda Civic with 176,000 miles on it. The car runs and drives but needs new lines running brake fluid to the rear brakes. New front Brakes, oil change, a new front plastic bumper (metals fine), and inspection. It also needs cleaning on the inside. The car is for sale for $500 and the fix will be $850. The mechanic is confident that after the works put in, ill have a good car for 1,350. This would be my first car. I have a couple other options to, one being a 96 Oldsmobile Cutlass Supreme. Its ready to go with 136,000 mles for $2200. The Hondas privately owned, and the olds is a dealership.

Car jerking at constant rpm while driving? - 1

I have honda civic 1999 exi. During the drive the car shuffles and takes small jerks normally between 2 to 3k rpm speed, i got scanned my car nothing found, get new fuel filter installed and try Hi octane fuel but problem still persists. When i accelerate the car it stops jerking. I also cleaned fuel injectors last month its happening in all gears and car tsansmission is manual please note its a dual fuel driven petrol and and cng as well. When i shift it on cng (compressed natural gas) it runs normally and well without jerky drive. Seems problem with petrol only
any body help?

Car jerking at constant rpm while driving?

I have honda civic 1999 exi. During the drive the car shuffles and takes small jerks normally between 2 to 3k rpm speed, i got scanned my car nothing found, get new fuel filter installed and try Hi octane fuel but problem still persists. When i accelerate the car it stops jerking. Any body help?

Added (1). i also cleaned fuel injectors last month

Added (2). please note its a dual fuel driven petrol and and cng as well. When i shift it on cng (compressed natural gas) it runs normally and well without jerky drive. Seems problem with petrol only

Does Exhaust tips change sound?

My brother has a 2005 Honda civic hybrid it has stock tip that had when bought brand new in 2005. And we went to O Reilly and saw exhaust tips for $5.99 that they said fits the Honda so am just asking will it change the sound or anything? It isn't aomg pipe it's 4inches I think