my 4.6 is running rich and stumbling off idle but seems to run fine...Where should I start fixen?? Thanks

plugs, wires, o2 sensors, start by checking everything that should be done with basic maintenance...how many miles do you have? have you checked anything?

Basic tune up stuff....

What makes you think it is running rich?

120k for miles. smells like fuel out exaust and plugs seem a little wet.... atarts fine but you give just a little gas it wants to stumble but once going runs pretty good.... I will start with those ideas once I figure out how to get the air inlet tube off........

I assume you have a Gen 1 93-96 if you are having issues getting the intake tube off. On the very back of it there is a screw holding the intake tube in place. You'll need a 1/4" ratchet and an extension to get it off. It's a little bit of a pain but not too bad.

Don't forget to change the ECT (engine coolant temp) sensor. This is the two wire sensor that tells the computer how warm or cold the engine is and they lose their resistance over time.

It's cheap to replace - get a brass one, not the plastic version.

Thanks to all... Its been awhile since I wrenched a used car... My kid loves this 93 its his first car and im reliving my younger days... Exaust tonight 373 gears and art car prepppped trany very soon...... Thanks for the help...