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Model specific boards => Golf mk4 => Topic started by: chunky5fingers on 01 April 2012, 22:45

Title: Cylinder 3 or 2, which is witch?
Post by: chunky5fingers on 01 April 2012, 22:45

Hi all,
I'm new to this forum and car maintenance in general but I'm learning fast  :wink:. I have owned a 1999 1.8 gti for the last 4 years.
I filled up with petrol on Wednesday drove 500 yards, stopped at the traffic lights and then the car turned into a tractor!
I have read alot on this forum regarding missfires (thanks to everyone who has contributed in the past!) So far I have tried:
Disconecting MAF. No change.
Disconecting each coil in turn to find which cylider is missfiring. Engine runs smoother with the same cylinder disconnected. Identified the cylinder.
Swapped spark plugs around. No joy, same cylinder effected.
Switched the ignition coils (long black things attatched to the spark plug) around. No joy, same cylinder effected.

So here are my questions:
1.From the front of the car looking at the engine do the cylinders run from left to right or right to left? 1234 or 4321?
Working from the air box and MAF (right side) it is the third cylinder along effected. 4321.

2. Can I switch my coils around to find out if it's my coil pack thats at fault?

If indeed it is my 3rd cylinder missfiring then I will try changing my ignition amp, which just happens to be rattling around the engine bay not attatched to the airbaox.

Next change spark plugs and fuel filter.
Then clean the injectors.

Title: Re: Cylinder 3 or 2, which is witch?
Post by: rench on 01 April 2012, 22:52

does it juder and splutter when you put your foot down?

Title: Re: Cylinder 3 or 2, which is witch?
Post by: chunky5fingers on 01 April 2012, 22:56

There's alot of engine movement when idoling and it judders around 1000 to 2000 rpm. there is a popping coming from the end of the exhaust.

Title: Re: Cylinder 3 or 2, which is witch?
Post by: Wazzzer on 01 April 2012, 23:59

Lambda or ignition amp

Title: Re: Cylinder 3 or 2, which is witch?
Post by: chunky5fingers on 02 April 2012, 00:25

Quote from: Wazzzer on 01 April 2012, 23:59

Lambda or ignition amp

Sorry is this a question or advice? I still neeed to know which is cylinder 3.

I've just ordered a USB VAG-COM 409.1 OBD 2 II CABLE LEAD so I don't think I'm going to do anything else until I get some error reports. I know that the most likely causes of the missfire will not show up on Vag-Com but it worth a go  :wink:

Title: Re: Cylinder 3 or 2, which is witch?
Post by: rench on 02 April 2012, 09:57

Think it's 1-2-3-4 as you look at it from front of car

Title: Re: Cylinder 3 or 2, which is witch?
Post by: bunj on 02 April 2012, 10:10

Number 1 cylinder will be closet to the cambelt, so as your looking from the front it will be to your left.

Title: Re: Cylinder 3 or 2, which is witch?
Post by: richw911 on 02 April 2012, 11:19

Quote from: Wazzzer on 01 April 2012, 23:59

Lambda or ignition amp

Agreed  :wink:

Title: Re: Cylinder 3 or 2, which is witch?
Post by: rench on 02 April 2012, 11:34

I had same problem was the coil pack that had done.

Title: Re: Cylinder 3 or 2, which is witch?
Post by: chunky5fingers on 02 April 2012, 22:04

Thanks all  :kiss: that saved me buying a ignition amp for nothing  :smiley:
So I think it's my cylinder 2 thats miss firing. Is there any way to check before I go out and buy a coil pack?

Title: Re: Cylinder 3 or 2, which is witch?
Post by: JimBR on 03 April 2012, 08:46

Swap the coil packs around and see if the misfire moves.

Title: Re: Cylinder 3 or 2, which is witch?
Post by: richw911 on 03 April 2012, 10:47

Quote from: rench on 02 April 2012, 11:34

I had same problem was the coil pack that had done.

Quote from: chunky5fingers on 02 April 2012, 22:04

Thanks all  :kiss: that saved me buying a ignition amp for nothing  :smiley:
So I think it's my cylinder 2 thats miss firing. Is there any way to check before I go out and buy a coil pack?

Quote from: chunky5fingers on 01 April 2012, 22:45

Switched the ignition coils (long black things attatched to the spark plug) around. No joy, same cylinder effected.

 :huh: