poorly vr - running now but smells rich

[kcw 1]

Evening all

I had a missfire on the car and turned out to be the coilpack wasnt sending a spark to 1 and 5, replaced the coilpack and it ran ok for about 10 15 minute then when i went to go round the block to make sure all is well and its now missing all over the place.

coilpack is sending a spark to all the cylinders and the plugs are brand new, on the overrun the car was very smokey and i'm getting some steam/smoke from an oil breather on the rocker. Could i have badly worn piston rings causing the oily smoke or overrun and losing compression making it run like a burst arse.

Hope someone can help

Ken

[Rikki 2]

You sure your leads are on well...did you use the tool...assuming you have one lol?

[gavinvr6 0]

make sure the plug's are torqued to the correct amount and when you fit the leads use the vw tool, after you feel the lead pop on flip the tool over and fit the small end onto the top of the lead and give it an extra little push because sometimes when you pull the tool off it can pull the lead off slightly. also check the leads are back on in the correct order, i had 2 back to front and it ticked over ok then when i went to drive it was like a pig. also make sure the plug is fitted to the coil pack securely and that none of the wires into the plug are broken or damaged.

sounds like a simple issue that things have not been replaced exactly right, another option is the coil pack is new and giving a good strong spark your leads could be starting to break down and allowing small amount of arcing. go out tonight when its gone dark and pull the leads one at a time and allow the lead to dangle near the inlet mani. look under the lead for very very feint sparks along the leads length.

[kcw 1]

I tried the leads (well 1 and 5 anyway) on another vr when I was trying to find the original problem and they worked fine. Surely if it ran ok though for the first ten minutes the the leads are on ok? I dont have the specific tool for the leads btw I just pressed them on til they clicked with long flat punch. Also, can I over tighten the plugs as they are in the pretty solid.

Thanks

Ken

[rodney 17]

not meaning to teach you to suck eggs here...

Do the basics mate... you have connected everything to the correct place and they are all connected correctly and firmly. did you set the plug gap and yes you can over tighten..after that......Mmmmm this steam???? Where exactly is it??? and is white smoke or just vapour??? Does it go when the engine is hot??

[kcw 1]

I didnt gap the plugs just bought them from vag and put them in, what should I gap them too?

Steam was coming from the breather on the rocker, where the pipe usually goes into the inlet but thats blocked off and I have a small filter, was more steamy than smokey could it be cos the cars not ran for about a month?

My old plugs also seemed a bit oily when I changed them. What issues could come from over tightening the plugs?

[gavinvr6 0]

the plugs should be gapped correctly if bought from vag.

the steam sounds like condensation inside the rocker cover, i used to get it on my old mk2. its moisture in the top end, should be ok, but keep an eye for mouse on the filler cap, this will mean it needs a propper flush and top up. then put the pipe back and lose the breather filter.

oil on plugs can be leaking from the top and squashed sealing rings allowing oil in or could be worns valve stem seals or worn rings

over tightening could would cause squashed sealing rings so not a totally sealed cylinder. ie loss of power, poor running/idle

p.s did you come to southsea last thursday?

[kcw 1]

No mate that'd be quite a trip from Glasgow lol

Checked all the leads were in correctly, the were. Some of the plugs looked/smelt oily, 4, 6 and 5 being the worst offenders. All cylinders are firing cos I took each lead off while running and it nearly stalled.

Also unplugged the MAF and there was no difference so is that the cause of all this?

Ken

[kcw 1]

Now smells like its running pretty rich, is there any way I could check this ising vagcam? Car has no charcoal canister if that makes a difference.

Ken

[thegoth 5]

if unplugging the maf didn't make a difference, and it running rich it well could be the cause.

even on the share ware version you can look at measurement blocks which give you readings and timings. you can monitor theO2 sensor and injector open times as some indication of fuelling.

[gavinvr6 0]

No mate that'd be quite a trip from Glasgow lol

Checked all the leads were in correctly' date=' the were. Some of the plugs looked/smelt oily, 4, 6 and 5 being the worst offenders. All cylinders are firing cos I took each lead off while running and it nearly stalled.

Also unplugged the MAF and there was no difference so is that the cause of all this?

Ken

[/quote']

sorry i somehow added that to the wrong post lol

i'd say get the maf checked or if you got a mate with a vr swap maf over. if you unplug it should run like a pig. also if maf cant measure the airflow it may have a figure its stuck to meaning its dumping to much fuel in

[kcw 1]

if unplugging the maf didn't make a difference' date=' and it running rich it well could be the cause.

even on the share ware version you can look at measurement blocks which give you readings and timings. you can monitor theO2 sensor and injector open times as some indication of fuelling.

[/quote']

Can you give me some normal figures so I can compare to my car? And what measuring blocks should I read.

Thanks