Hesitation on full throttle

An annoying problem has been plaguing the car of late; Under full throttle the car jerks and holds back before accelerating. There doesn’t seem to be much pattern to the jerking other than it tends to occur most on WOT. This got me thinking that it was either fuel or ignition related.

Since the spark plugs probably hadn’t been changed in a while, I wondered if they were worn and if the spark was either too weak or being blow out under a lot of boost pressure.

On removing the plugs, they did seem quite worn, so in went 4 fresh NGK BR8EIX plugs from Ross Sport.

I took the car out for a quick test and pleased to say no more kangarooing silliness

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