02 ran 5 power wont - Olympus Stylus 700 / 700 Digital Camera

Put gas in it?

I'm assuming you already replaced the fuel filter? Is it still clean?

try resetting it first.

sounds like fuel pump check for power an pump is working should hear humm from gas tank as key is switched on

press diplay/mode/down all within 5 seconds

Sounds like it may be drawing air around the intake somewhere. Let it idle and spray around carefully with wd-40 until it speeds up. This will reveal the leak.

Sometimes If a car runs out of fuel the fuel system needs to be bled to get rid of air locks.

you are either lacking SPARK or FUEL. You put 5 gal in the tank, but is the FUEL PUMP working ? The lights and radio operating only indicate ther is power in the battery.. Hope this helps.

The catalitic converter is a mechanical device , it simply converts harmful emissions into water/vapour. The 02 sensor if faulty would put the engine management light on. If the 02 sensor has been faulty for sometime it could tell the ECU to supply the wrong amount of fuel to the engine which in turn would eventually damage the catalitic convertor. So you may have to change both in the end, but first I would check out the 02 sensor and replace if required.

check air intake hose first, including MAF sensor (if dirty must clean) , then check for all other hoses for leaks and last but not least check air filter.