Check engine light and fuel cap light

[poweraidon]

Every time after I get gas my fuel cap and check engine light always comes on. I've taken it to autozone and they scanned it for me I forgot what the code was but it had something to do with the gas cap. So I bought a new gas cap and still nothing had changed. I've waited a few for the drive cycle but I had to remove the neg from the battery for it to go away. It's getting annoying. What's wrong how can I prevent this?

 

[Zach]

Where did you get the gas cap from? A lot of times the aftermarket ones don't seal right.

 

[poweraidon]

Where did you get the gas cap from? A lot of times the aftermarket ones don't seal right.

I got it from autozone. They said it was compatible

 

[Zach]

One main item I sell is gas caps. People have tried the aftermarkets then buy to OE. Might try that and see if it cures it since it keeps throwing the code for the gas cap

 

[poweraidon]

One main item I sell is gas caps. People have tried the aftermarkets then buy to OE. Might try that and see if it cures it since it keeps throwing the code for the gas cap

Do you think it could be the o2 sensor?

 

[Zach]

Does it keep setting the gas cap code?

 

[poweraidon]

Does it keep setting the gas cap code?

The fuel cap light goes away but check engine stays

 

[Best4x4]

Yeah I totally agree!!! Stick with OEM!! Not only does the aftermarket cap look cheap vs the OEM H3 cap, but they're cheap and DO NOT work properly. Had that issue with my 05 Jeep Wrangler and I finally bought an OEM cap and the problem went away.

 

[Zach]

The fuel cap light goes away but check engine stays

Have you had it scanned since? Same code or different code.

 

[poweraidon]

Have you had it scanned since? Same code or different code.

It's the same code because it came on when I was mudding and I thought I broke something but I got it scanned and it was the same code

 

[Zach]

Try an OE gas cap just for ****s and giggles. Not much more then the aftermarket and return the one to autozone. If it is the same code, I'd bet it clears it up.

 

[poweraidon]

Try an OE gas cap just for ****s and giggles. Not much more then the aftermarket and return the one to autozone. If it is the same code, I'd bet it clears it up.

Please don't mind me asking but what is a OE gas cap?

 

[Zach]

Original equipment. From the dealer

 

[poweraidon]

Original equipment. From the dealer

Ohh oem... I'll try to get one but I didn't have any issues with the cel and fuel cap lights before I got stuck. My h3 had gotten stuck and I had to leave it there overnight in the cold and all the mud and water froze around it. Do you think that could've caused it

 

[Steve #1]

It could also be a problem somewhere else in the EVAP system. Do you know the exact code(s)?