diagnose misfire

[RichardJ]

Changed the plugs already, gonna have a look at the coil pack and leads next.

Anyone got any advice?

 

[Dom_capper]

Could be the Lambda sensor also.

 

[hipwell]

Injector

 

[JamesBryan]

9 times out of 10 it has always been an injector for me.

Easy to test, just pull the power connector off each injector one at a time. If the engine note doesn't get any worse, that's your one.

 

[Christopher]

Yep. Always check injectors, TDC or coil pack first.

 

[Canary172]

What type of misfire? Mine used to cough occasionally under increased engine load; turned out to be crappy leads.