[welshboy77]

When the car is under load, ie accelerating from 30 in 3rd etc the car jumps, hesitates then picks up gradually, I notice this more on harder acceleration or when I have a car full of people. I have reset the ecu, changed lambda sensor as fuelling was heavy, what next? how can i check if its a dodgy coil pack or plug or lead. Also noticed slight pinking last week or so, is that any pointers, please reply quick, wanna have a look over weekend.

 

[derv]

Could be your MAF thats faulty, mate.

 

[xrtwo]

My ST200 had a similar hesitation and was cured when i changed the spark plugs and leads so i would definitely change them especially if they haven't been changed in a long time.

 

[welshboy77]

I have had the car put on a diagnostic machine, they think the MAF is fine so will try the plugs and leads over the weekend. Hopefully this will cure it. Car feels underpowered too.

 

[kerryw]

new plugs and leads helped mine no end :L