Misfire cylinder 3- p0303 options?

[aterro]

Hi

The 182 received the following fault
Po303- misfire on cylinder 3

Sounds like its running on three
it runs but badly

I removed spark plugs to find the 2nd n third plug wet ( petrol)

I think it's coilpack- do coilpack a fail in two or single?

Am I safe to turn over the engine to check spark with inlet off?( don't want to mess up other sensors)

 

[kneedowndean]

Just out of interest my 172 had a misfire on no.2, took it to Fred at BTM who diagnosed plug leads. Try them first.

 

[not normal dan]

Could be the coil pack cause cylinders 2 and 3 do spark together (due to wasted spark ignition) but first off try sparking it off the inlet, swap leads to just to makesure its not them

 

[aterro]

It's not leads or plugs.
Will get a new coilpack tomorrow.

 

[aterro]

Sounds like a motorbike- misfire on cylinder

182
originally got fault code po303 misfire on cyc 3

Changed
plugs, leads, coiloack new

Idles level but sounds like its running on two/ three

Now I'm getting misfire on cyc 2

What is going on?
What else should I try? Injectors?
Ideas?
Cheers

 

[jenic]

Re: Sounds like a motorbike- misfire on cylinder

Injector?

Get it on a decent code reader before spending more.

 

[aterro]

Re: Sounds like a motorbike- misfire on cylinder

I haven't got a decent one
only BMW one which won't work

I've changed injector from cylinder 4 to 3
and still misfire on 3
I will stick the injectors in cups and turn it over to make sure there all firing at same.

 

[jenic]

Re: Sounds like a motorbike- misfire on cylinder

Pay someone to get it on a decent code reader then, for the sake of £30 at a specialist it would be well worth it.

Try diamond motors.

 

[aterro]

Re: Sounds like a motorbike- misfire on cylinder

Not insured, I'll have to ask around.

After injectors, could it be lambda precat one?
Cheers.

 

[jenic]

I don't know, I've merged both your threads though.

 

[aterro]

Cheers
sorted
was injector number 2
wasnt firing at all!
37 for brand new one though woop