Hello,

Currently have a 2002 Neon, 2.0l SOHC with some minor mods done.
I reciently have been having an issue of the car losing power once it has been running for awhile.

I have replaced all of the ignition wires, plugs, O2 sensors, MF sensor, Cat was punched out, cleaned the throttlebody, fuel pump, fuel filter, injectors, coilpack.

Biggest thing I notice is the smell of fuel coming out of the exhaust... Constantly. I know it is running rich and I cannot figure out why.

It is possible that the computer is going out of it?

I am just out of possible ideas as to what could be causing it. As I said it is ONLY after the car has been running above 80 mph for around 20 miles or so...

The car no longer has an AC or anything of such nature. It is simply a motor, tucked cables and wires and an intake.

 

How does the operating temp look?

 

You gutted the cat and are wondering why you are smelling gas fumes? You realize that's what the cat does...burns up A/F that isn't burned in the engine. Air doesn't really "smell," but fuel does.

 

Smell of fumes was before the cat was punched out. Its not as bad now

 

Temp never goes past the lower middle mark. Normally runs cool unless I'm moving over 3k Ron constant

 

any codes comming up? what do the tips of the plugs look like? I notice when summer hits here in Dallas at temps of 105-115 degrees outside mine has rich fuel smell but the mpg has not fluxed much