slight missfire .

[welsh.Z.S.]

was cleaning the bay the other day with a spray bottle , something as obviously got wet as when i 1st started it it idle'd very bad , also let off a few pops then cleared itself , ran fine the next day aswell , then it developed a slight flat spot at around 1500k , took the coilpack off to see if any water etc came out and made it slightly better but could just be luck , only does it sometimes now , maybe once a day if that . any ideas what it could be before i start spending money ?

 

[montana]

Take your plugs out and dry your ht leads too if you havent already done so

 

[welsh.Z.S.]

cheers man il take a look when this rain stops

 

[welsh.Z.S.]

Took the leads and plugs out earlier and all were fine , clean and dry, got a coilpack coming this week, anything else it could be apart from the coilpack ?

 

[EdwardTobia]

Usual suspects for misfire are sparks, ht leads, coils and injectors.

I'm in the process of sorting out a slight misfire on my mk3 clio 1.4 and so far I have changed everything apart from injectors which arrived today lol

 

[welsh.Z.S.]

Lol . i hope the coilpack sorts it when it comes , cheers for the reply mate , hope u sort yours also lol

 

[welsh.Z.S.]

changed the coilpack and its still exactly the same , when 1st started it doesnt do it at all , after 2-3 mins of driving it starts missing , but above 2-3k its fine .. any other suggestions ?

 

[MWright]

I don't have an RS but im sure that when other brands of spark plugs are fitted it causes a misfire.

I don't know the specific plug but I know it's an NGK PFR... a search should throw it up.

Edit: NGK PFR6E-10

Check to see if you have those if not change them.

 

[welsh.Z.S.]

it shouldnt be that though as it only started doing it since i washed the bay .. thanks for the reply though mate

 

[Hammock123]

Plugs could be damaged? Try changing them maybe?

 

[welsh.Z.S.]

sorted found a slight tear in 1 of the leads which was causing it to spark which was causing the missfire , all fixed now , thanks for your help guys