C/E light question

[DSMxTSi]

We have had a c/e light for the past year in our '95 ESi ever since the catback was installed. I have been figuring it to be the rear 02 sensor, though not sure why just a catback would throw it, plus all the 2gnt guys don't have a c/e light after installing a catback. Yes, the cat is still there. However, I have recently noticed that whenever the gas tank is low and the car is started the c/e light doesn't come on for about a minute or so. Usually, it's just on all the time. Also, recently the gas seems to have too much pressure on warm days and after being driven for a while as it'll make a hissing sound from near the gas tank and gas fumes are definately present. If we loosened the gas cap it would relieve pressure for a very long time. We swapped the gas cap for a new Stant gas cap from the auto parts store last weekend, but nothing changed. Any thoughts as to what is the problem? We have a new fuel filter to swap this weekend, as far as we know it's never been changed.
Brian, could we datalog it sometime in the next few days??

Thanks,
Cody

[303Racing]

Yea no problem.

It might not read your ECU if your obd1 but we can try.

[DSMxTSi]

Originally posted by 303Racing
Yea no problem.

It might not read your ECU if your obd1 but we can try.

It's obdII.

Cody

[303Racing]

I work tonight so thats no good for me.

But I am off Friday, Saturday, Sunday. I will be home all weekend doing painting and body work so just bring it buy whenever.

[DSMxTSi]

Cool, I'm also off Friday. Provided we can get the Spyder back tonight then Jenni can take that to work tomorrow and I can bring the ESi by. If not, then we'll stop by over the weekend.

Cody