dude i had the same issue. my efi fuse was corroded. you could barely tell it was running a hair off. i tried ALL KINDSA
.
adjust afm
plugs wires rotor cap set timing
reset timing
header
exhaust new cat no cat
check grounds clean grounds
asjust tps
new tps adjust fps
new fuel pump filter
other
new afm
was racking my brain
finally
i checked the efi fuse i was pulling the battery ground to reset the ecu
it had a little bit of corrosion looked like the prior owner didn't know you have to unbolt the fuse box and remove it from the bottom so id di and installed a new one and fingers crossed 150 miles so far hasn't done it it had a little flat spot around 1200-1800 rpms and used fuel sorry punctuation
