supercharged 6 missing under full throttle?

[slepar]

hey guys i have a wh statesman supercharged 6 and its missing slighly under full throttle? doesnt miss at all on idle only full throttle, any ideas?

all help much appreciated

cheers

[delcowizzid]

coils, leads ,plugs ,or plug gap too big ,cas on its way out or leaning out for some reason will all make it miss

[slepar]

thanks for that mate, the leads look fairly new, cas? and that is lol

[delcowizzid]

crank angle sensor in behind the balancer on the front of the engine

[brad_m_is]

i would start with the leads mine did the same thing and the terminals on the leads had corroded out and they basically were just sitting on the coil pack not clipped on tightly

[karlos]

Perform a fault code check.

[oska]

if its done 200K plus, then new coil will fix it

[slepar]

done a fault code check and yea only got 12

[HARVZ-6]

Pull all the leads off and push them back on.. my super6 has one lead that comes loose every 10 thousand ks try that see how you go

[JSTCOZ]

had same issue with my car (not a super though), got a service withg a new belt and plugs/leads and it is now gone (y)

[slepar]

i will be giving it a full service very soon. i only just brought it and i filled it up with vortex fuel and it seems to have stopped? is it possible bad fuel would cause it to miss?

[delcowizzid]

if it had 91 in it that can make it ping and the ecu pulls timing can feel like a miss when it happens

[VT-565]

I would put money on fuel being the issue.

I had a drama recently where even on the 91 RON timing map, it would ping its head off.

Run better fuel through it and a bit of booster, fixed. Back onto the 95 RON map

So yeah, fuel.

[chargedvx6]

Is the car modified at all? Smaller charger pulley or anything?

Will most likely be leads but if you have a smaller charger pulley and haven't changed to a different gap plug it could be a possibility too. Most common cause of break down is spark related