help can any tell me the cause of the following problem?
95 XE v6 4x4 a/t 3.0 after a tune up runs good when cold when warms up runs poorly spits studders gas milage the same as a hum v 5 gal. to the mile
just had a new exhaust system put in new cat muff and dual tail pipes
help b/4 inwreck it or burn it thanks pre tune up ran ok with a little studdering now and then. plug ngk tried bosh iridium run worse faster
changed rotor and cap 2x plugs 1x wires ok checked with meter