[Christ]

Originally Posted by trooperguy10

Thanks for all your input guys. Unfortunetly I have tried everything mentioned..... and then some. I even experimented with putting ice on certain areas such as the injectors, alternator, intake etc before the engine warmed up just to see if this might keep the sputter at bay a little longer, but to no avail. I haven't tried my gas cap though, but it does release pressure when I open it. My charcoal canister is the ONLY thing I haven't replaced, but I'm doubtful that it could be my problem. My muffler may need replacing, but my previous rex had a worse muffler and still ran fine. If I remember correctly, this all started after I changed my oil. Same oil as before. I cannot find anywhere in the back part of the engine where (while putting in an oil filter) a wire came loose. This all happened suddenly. Nothing gradual.
One other thing, my light burned out for the "OIL" indicator. Yes it does have pressure, but it doesn't come on at start up anymore. I considered this as being a possibility for the computer not to see resistance during the start up cycle. Sounds strange, but I learned that stranger things can happen. Welcome to my world.
If anyone has any more ideas or revelations, please post these. And thanks!

It's an HF - clean the EGR system and R&R the cat. They lean burn while cruising, and the heat cokes up the EGR.