misfire and late boost

T

tombola

Guest
when car is cold it idles fine but as it warms and settles to 1000rpm
it developes a misfire,
when driving you can feel it kangeroo slightly while holding a constant
speed anywhere from 1200rpm to 3500rpm this is when it starts to boost
to about 6 psi then it will hit 10 psi by 4000 rpm and seems to pull
okay but feels flat due to it coming on so late

thing is i have just replaced det sensor which had an itermittent
fault but when it was working it used to literally ping to 10 psi at 3100 rpm

i also lowered the tickover from 1450rpm to 1000rpm by screwing
the idle screw clockwise about three turns ? i am thinking could this have an effect on the late boosting

have just replaced the ht leads with magnecore kv85 new cap,rotor arm
plugs and fuel filter

is a rolling road session the only way to solve this or can it still
be overlooked even on a rroad
 
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