well i am new to this but have owned 3 cherokees the latest one i bought is a 92 i bought it with a blown head gasket it idled rough but i thought it was the head so i took it off had in machined and replaced all gaskets and when i started it it still idled very rough so i took apart timing chain and replaced because it exceeded the allowable slack but still idles very rough it takes gas good and drives ok just idles very rough have tried injectors throttle body with sensors crank sensor map sensor ( no i didnt buy all new took off jeep i drive daily ) but still no difference ccan anyone help please

 

tune it up. plugs wires cap and rotor. could be TPS or MAP sensor