Engine miss at around 80klm

[steve40]

Hi all My 2003 vy v6 is on gas and at around 80klm and 1600rpm the engine starts to miss,and then under load as well,the warmer the temp is outside the worse it is,it does it on petrol but its not as noticeable,I have replaced the leads but that made no differnce any ideas would be much appreciated.
the gas system is vapor injected.

 

[steve40]

Hmm no takers,maybe I will change the spark plugs and see if that makes a difference.

 

[Kiddo]

Mmmmhmmm generally when nobody replies, it means nobody knows

 

[edals]

Start with plugs and leads mate first then failing that it could be coil packs or the dfi module

 

[steve40]

Thanks for that I will give them a go

 

[epajvh]

Had same issue, was coil pack.

 

[steve40]

Thanks epajvh is your car on gas?

 

[Yamaha Techy]

I had the same issue on a straight petrol and changing plugs did the job