95 tracker miss after warm up

[1995 toad]

150 was cold on all cylinders
ect reads 300
tps all smooth
o2 seems to make no difference plugged in or not no cracks in exhaust
need to pull ecu to check
fuel pressure was taken at the cap at the end of the rail.
cleaned maf
injectors only make the chattering sound when missing
plugs where fully light gray with no heat lines on the strap.
vacuum was stable at 19 at fpr port