I have a 2001 GXE and I have noticed that when I finish driving the car it smells like gas.What can be the cauase of the smell.

 

I have the same problem. Mine usually occurs after eating Mexican food. Not sure where it comes from…

 

LAWL^

 

*a leak somewhere?

 

its burning to much gas? do you have any check engine lights?
like an O2 sensor ?

 

Check the fuel pressure regulator (if its easy or even has one, not sure)...I know one of those suckers went on my last car and caused it to smell like gas...

 

I had the same problem under hard acceleration. My ECU needed a reprogram because it was running WAY too rich (120% higher than normal)

 

I do have the code P0420 and it does seem to get poor gas mileage.

 

Get this resolved ASAP.......and why would you ignore the fault code, particularly with an apparent rich condition. This is an O2 sensor code but it can be caused by other engine operational issues. If you have no obvious vacuum leaks or holes in the exhaust, you need to get it hooked up to a scantool to observe the O2 sensor readings and response etc. Has the SES light ever been on?

 

No the code is not an O2 sensor code the code is for a faulty pre-cat.And I cant resolve a problem that I dont know what it is.Thats the reason I posted the question.

 

Sorry, it is a "cat. code", but triggered by the O2 sensors. But as I tried to explain, the root cause may actually be one of several things. This particular fault code can turn into a can of worms and it really is an advantage to get the car hooked up to a scantool for troubleshooting, and to follow the FSM step by step. You do not want to just start throwing parts at the car. If you have no SES light on and no other obvious problems as I already mentioned and nothing has been done to the car recently, then my gut tells me that it could be the MAF, but I'd just be guessing.

 

The ses is on the code is P0420 but that should not make the car smell like gas on the outside.

 

Listen to him, and yes, that code can cause that smell.

 

so you know what the problem is....fix it

 

thats not the problem.ok the problem is after I drive my car and get out it smells like gas fumes.I have the code P0420 and on average I get 20mpg 95% city driving.

 

Not sure if you read P. Sampson's post, but if you have not.. do yourself a favor and do so. It (reading) will greatly benefit you.

 

ive had that code for months and the car is fine

 

So you think. You could be slowly deteriorating your cats.

 

Im no disagreeing with P. Sampsom I have done those steps and I got the P0420 code which led me nowhere.

 

which i know im already doing with all the oil getting burned and going through them...i meant the car still drives the same.

 

Could I just eliminate this problem with a aftermarket y-pipe?

 

that wont eliminate the cats......

 

What does?

 

sorry...just saw that you have a 3.0....y-pipe will get of pre-cats

 

Are pre-cats proven to be the cause of the gas smell? How often do they really go bad? Im kind of confused about this

 

really does the precats cause the gas smell? someone help please.

 

We've tried to explain to you.......your "gassy"/rich mixture smell is not caused by a precat or cat. Neither is your poor fuel economy. There is a problem with the basic engine fuel metering/emissions control system. I think that you are confusing a basic fault "code scanner/reader" with a "scantool" such as Nissan's "Consult ll", or what is commonly called a "generic scantool" that are made by companies like SnapOn, Actron, SunPro etc. They usually start at about $350 and run up to several thousand. A "scantool" has the capability to read (and store) live streaming data as seen by the ECM from all the different sensors (such as the O2 sensors) and to monitor all the ECM data related to engine operation/performance. It's not as simple usually as just coming up with a fault code. There is a fairly involved step by step procedure in the FSM for troubleshooting this fault code and actually determining what is the real problem.

 

I had a similar problem with my A33 and it was a fuel connecting line in the engine bay.

 

Were would I go to get the car scanned?

 

^

 

Have you visually inspected the car for any small leaks on the fuel lines including the fuel injectors, fuel rails, fuel lines, gas cap, all related hoses, fuel canister, etc...You may have a real fuel leak...You may wanna invest in a portable fire extinquisher in the meantime. Hope you can find the problem!