engine control problems

Ok lets see I have new plugs, wires, cap and rotor , tps, map , converter , put on a msd ignition and coil , o2 sensor , checked for vaccume leaks
I have a loping idle and the check engine light says running lean and rich
i am out of ideas and can only think of is the computer it sucks getting 5 mpg can anyone help please
its a 96 xj with 4.0 auto trans

Was it doing this before you installed the MSD ignition?

Re: Vacumn leak or unconnected Map Sensor

The only two things I can think of to get 5 MPG is an unconnected map sensor - giving full rich all the time (very likely) or a defective injector leaking fuel constantly (less likely).
suggest you check for vacumn at the MAP by unpluging it and plugging it in - should result in a noticeable change!

could be temp sensor telling the comp. to put more fuel in.

yes it was before the msd, I've checked each line for vaccume even pulled of the vac at the map to see a change there was changed the tps and map for the hell of it and know i guess i will do the same for the temp sensor to see if that helps thanks for the info and any more would be appriciated