my 306 has compreession

leads are sending spark

sparks coming out of sparrks

changed coil pack no change

took exhaust off no change

air flow tested rising on revs perfectly

fuels coming out of rail

air intake taken off no change

2 and 3 still misfing

mostly at idle and upon revs it wants to die instantly as i start the car ...have to gas on to keep it going ,,, but still steady misfire upon reevs few backfires hear and thier

dies removing 1 and 4 leads when running ,,, have swapped sparks aorund in past pretty sure made no differnce ,,, will check again ,, which brought me back to leads or coil ,,, yet they are all working ?

fuel to much when in block ? is what i originally thought right from the begining or to less fuel say for example ,,, yet all 4 on rail were squirting around the same pressure by eye when checked

i will re check this properly

done almost every test with my mate we are both stumpt slightly its feels liek we going round and round ???

with this misfire

i know a bit about cars im not professional but something doesn't seem right to me like i feel we have checked eveyrhting ive read almost everything possible about misfries and how engines work seriously

my mind says it should be running,,,, maybe im missing something ?

something stupid and prob what ive already checked uno... like my mate helped him with his mirage

same misfire

o2 light on dash

he changed sparks solved problem for a little bit he rekons then back to sq 1

so i said goo buy some leads

got their.... one cylinder of his new spark plug still looked new others were burnt had obviously Fired fine ... so i changed the one cyl lead minor change ,,, weirdly ,, changed all 4 leads drove like brand new again

leads did have orange build up on them

I'm thinking maybe ironically i need to just replaced leads sparks and coil at same time and see if it stops as it seems somethings making me go round and f***n round wit this car ... ahhahaha they alll look fine no white residue on sparks leads coil look new

as I've only changed coil pack because the leads were sparking and the sparks are getting spark . fuel is coming out of rail and air is fine matching revs and compression is good ..... any ideas cheers

i guess people will say just change them all but why when they are working fine i know people will say but under load they may not be as in once they are in the block they cant handle the pressure ?? its all crossed my mind but their must be something i am missing here ?

why change something if its working ?

so then it brings me back to over fuel upon spark ,,,, but then rails squiting jujst fine and air flow is fine ?? ahhahaha anyway thanks in advance let me know where im gfoing wrong !! only way to learn :)

sera

nz