lads

Ive been trying to sure a miss fire and erratic idle

so far ive replaced the dizzy cap, rotor arm, all leads, and all plugs, also yesterday I replaced the inlet manifold and plenum gaskets with commetic gaskets.

symptoms are still sigh the same

oh and its not the ISCV ive tried 3 different valves now

when you remove the iscv lead it idles fine

I have an erratic idle, sometimes hunts up and down and even when hot it rests at 1500rpm, I can blip the throttle and it will come down to 1000rpm

also she is slow coming off the throttle when driving

and in first and second gear if I floor it i get a huge miss fire and a bang and a cloud of fuel out the back

its 100% driving well and although I feel slightly down on power, when throttle is fed in slowly in 1st and second theres no problem, the miss happens about 4000rpm

its not due to low fuel level
ive also checked all the main engine earths and grounds that I can find

also ive altered the Co level on the L8 ecu which I have, the car has stage 3 mods, 3 bar etc

really toiling now any more clues gents, ive got new temp sensors here thats my next job

would phase sensor gap cause this ?

regards Glen