Persistant Misfire On Vr6 Engine

[sepulchrave]

Just thought I'd let people who may be interested know that I have finally solved the misfire which has plagued my car for the last few months.

 

I have VAG-COM and the relevant cable and always address problems it throws up, however it has been no help at all in this case, so here is my cure:

 

1) Absolutely the first place to start with this engine are the HT leads, standard replacement leads will last a year or two at best so get good ones.

For really good quality replacements which last much longer then get a set of Magnecor Electrosports 80 for post 1995 VR6's, they will clip in just fine to the standard engine cover.

 

2) If you are replacing the HT leads then replace all the spark plugs as well, I only recommend NGK plugs, IMHO they are the best, get them here.

NGK Iridium plugs are purported to have a wider heat range than most and last longer (currently testing this claim).

 

3) The Coil Pack goes wrong largely because it's forced to pump HT through knackered leads, this overloads the insulator and overheats the unit.

I bought a brand new replacement coilpack on ebay and it's absolutely excellent, don't pay more, but you must buy new!

 

4) The Lambda probe, VAG-COM is no use here since mine checked out fine, however when I got the old one out it was the VAG OEM unit from 12 years ago.

I bought an NGK replacement probe which is a more modern design here, and it finally cured that misfire.

 

Once you've addressed all these problems your car should once again drive like new and it does wonders for your fuel economy too.

Don't forget the MAF; on these engines it makes little or no difference to performance and road manners and you won't notice it failing, but again it has quite a noticeable impact on fuel economy.

 

Bingo, do your basic service items frequently, i.e. Oil and filter plus standard air filter (no bloody K&N rubbish) and you'll have few problems with this engine otherwise.

Keep on top of cooling system faults as they develop because doing head gaskets on these ain't cheap or funny!

[k00lken]

Hello, sorry to jump in on your thread, for some reason I'm not allowed to start my own. I'm a new member and I'm looking to buy a Galaxy can I please have some advice

 

the car is on ebay at the moment

 

item number 260259925655

its the miss fire thats putting me off the trouble is im on a very tight budget

 

As you can see from listing lots has been done but does any one kbow what the problem could be

and a rough idea of cost to fix if poss or should i leave it well alone

 

cheers

 

ken

[jtox]

hi all

 

ive got a ford galaxy 2.3 1998. just recently the car started to judder especially when you put the foot on the accelerator. okay I thought, ill start by replacing the spark plugs and HT leads no difference. Next step the HT transformers they cost alot of money and still there was no difference. Im not sure what to do next because i seem like a misfiring problem i have but ive replaced all the electrical components in that circuit and the car runs like a tracktor is there any one here whos had a similar problem and hows the best way to fix it.......?

[jtox]

Just thought I'd let people who may be interested know that I have finally solved the misfire which has plagued my car for the last few months.

 

I have VAG-COM and the relevant cable and always address problems it throws up, however it has been no help at all in this case, so here is my cure:

 

1) Absolutely the first place to start with this engine are the HT leads, standard replacement leads will last a year or two at best so get good ones.

For really good quality replacements which last much longer then get a set of Magnecor Electrosports 80 for post 1995 VR6's, they will clip in just fine to the standard engine cover.

 

2) If you are replacing the HT leads then replace all the spark plugs as well, I only recommend NGK plugs, IMHO they are the best, get them here.

NGK Iridium plugs are purported to have a wider heat range than most and last longer (currently testing this claim).

 

3) The Coil Pack goes wrong largely because it's forced to pump HT through knackered leads, this overloads the insulator and overheats the unit.

I bought a brand new replacement coilpack on ebay and it's absolutely excellent, don't pay more, but you must buy new!

 

4) The Lambda probe, VAG-COM is no use here since mine checked out fine, however when I got the old one out it was the VAG OEM unit from 12 years ago.

I bought an NGK replacement probe which is a more modern design here, and it finally cured that misfire.

 

Once you've addressed all these problems your car should once again drive like new and it does wonders for your fuel economy too.

Don't forget the MAF; on these engines it makes little or no difference to performance and road manners and you won't notice it failing, but again it has quite a noticeable impact on fuel economy.

 

Bingo, do your basic service items frequently, i.e. Oil and filter plus standard air filter (no bloody K&N rubbish) and you'll have few problems with this engine otherwise.

Keep on top of cooling system faults as they develop because doing head gaskets on these ain't cheap or funny!

 

yeah ive checked again i am in the relevant section?

 

it seems that you have posted wrong this post is in the mkI mkII ford galaxy technical section?

 

 

as you said in my other post lumy. i couldnt start a thread because i was a newbie ??????

[jtox]

Just thought I'd let people who may be interested know that I have finally solved the misfire which has plagued my car for the last few months.

 

I have VAG-COM and the relevant cable and always address problems it throws up, however it has been no help at all in this case, so here is my cure:

 

1) Absolutely the first place to start with this engine are the HT leads, standard replacement leads will last a year or two at best so get good ones.

For really good quality replacements which last much longer then get a set of Magnecor Electrosports 80 for post 1995 VR6's, they will clip in just fine to the standard engine cover.

 

2) If you are replacing the HT leads then replace all the spark plugs as well, I only recommend NGK plugs, IMHO they are the best, get them here.

NGK Iridium plugs are purported to have a wider heat range than most and last longer (currently testing this claim).

 

3) The Coil Pack goes wrong largely because it's forced to pump HT through knackered leads, this overloads the insulator and overheats the unit.

I bought a brand new replacement coilpack on ebay and it's absolutely excellent, don't pay more, but you must buy new!

 

4) The Lambda probe, VAG-COM is no use here since mine checked out fine, however when I got the old one out it was the VAG OEM unit from 12 years ago.

I bought an NGK replacement probe which is a more modern design here, and it finally cured that misfire.

 

Once you've addressed all these problems your car should once again drive like new and it does wonders for your fuel economy too.

Don't forget the MAF; on these engines it makes little or no difference to performance and road manners and you won't notice it failing, but again it has quite a noticeable impact on fuel economy.

 

Bingo, do your basic service items frequently, i.e. Oil and filter plus standard air filter (no bloody K&N rubbish) and you'll have few problems with this engine otherwise.

Keep on top of cooling system faults as they develop because doing head gaskets on these ain't cheap or funny!

 

 

 

 

here i took a picture to prove it!!!!

http://img151.imageshack.us/img151/249/wrongforumsu2.jpg

 

?