can some one help me please i am pulling my hair out over a problem with my motor,i have a mk3 1.0 on a l plate and it always missfires every time i start it mostly first thing it the morning,it missfires through out the rev range un till i have driven 50 yards down the road and then its fine and continues to be like that all day i just serviced it hopeing it would fix the problem but it has not can any one help?

I've changed the plugs,oil@filter,air fillter,leads,dizzy cap and rotor arm and the problem is still there

ps

is has only done 32000 miles from new.

Blue temp sender? Is it alright till its warmed up slightly?

Would have said ignition timing, but if it's alright after a wee while I don't know.

Edited 24 June, 200719 yr by tobyk

how will i know if it works ok or not m8

and is it on the thermostat housing?

Edited 24 June, 200719 yr by mnted

When you say 50 yards - do you really mean 50 yards ? - as in start the car, drive off immediately - 50 yards later the misfire is gone ? Time-wise how long are we talking from startup to misfire ending ? - and does it only do it when the engine is cold ?

yes it only does it when cold and missfire lasts for about 1 minute.

I'd say replace the blue temp sender for sure. They are £6 or so from GSF I think.

Buy a multimeter and do a search on the forum for beavis's engine diagnostic guide. It'll cost you 6 quid from maplins and you can test all sorts of things.

ok i will ask him thanx

:-D ok just to let you all know that I've found what was wrong with my motor,it was the head gasket after a kripton tune that did not pick it up and people telling me what it might be i disided to do a compresion test to find number one cyilinder was full of water so i put a new head gasket on and job done missfire now gone.

so if any one gets this fault you know what to do,oh and the top hose was solid from the back pressure.

thanx for your help lads. :-)

Why is EVERYONE getting head gasket problems right now?

Why is EVERYONE getting head gasket problems right now?

I've ben told its a comon problem on mk3 polo and golfs up to 1.4

Yeah, circa 60k miles seems to be the common time (did mine the other weekend and its just over 60k)

But right now there seem to be loads happening!