52 plate clio sport 172 missfire under load

[duncan240384]

I have recently developed a missfire under load i have replaced all plugs coil pack new leads problem still there checked injectors tolerance is fine across the board compression check a ok too any ideas anyone?

 

[danielbarton94]

what where the compression test figures? ive got the same problem at the moment and im thinking mine is a exhaust valve

 

[duncan240384]

The compression figs were all even like no differences I'm getting the timing checked tomorrow and a smoke test in case it's a vacuum problem or a leak somewhere its a strange fault though because mine isn't logging any faults on a diag machine what about yours ?

 

[danielbarton94]

Could be. A sesnor or something buddy? Erm I've got error p0301 misfire cyilnder1 on tickover which iam trying to fix