Hi All,

Back again with another problem with my mk2, ive noticed that its revving really high on idle.. it revs up and down on its own, from 1800 - 2000 rpm, if i put my handbrake in and slowly release my clutch to drop the revs to around 900 it will stay there but i have to do that every time.

When it gets hot or when I "boot" it, after 5 minutes it will literally cough and splutter and Judder/Misfire, it wont go anywhere, feels like a limp mode kind of thing, any ideas?! Its really stressing me now.

Already changed the Plugs Leads and Coils.

Cheers in advance

did you plug it to computer?

If you do not get any fault codes or just o2 sensor codes check for air leaking in at the join between the inlet manifold and the head.

I once had a Megane that behaved exactly as you describe and that was simply a failed inlet manifold gasket. Part only cost £3 but lots of labour to get to it on the megane. At least with the punto it's slightly easier to replace the gaskets.

darashen said:

If you do not get any fault codes or just o2 sensor codes check for air leaking in at the join between the inlet manifold and the head.

I once had a Megane that behaved exactly as you describe and that was simply a failed inlet manifold gasket. Part only cost £3 but lots of labour to get to it on the megane. At least with the punto it's slightly easier to replace the gaskets.

Click to expand...

there is 5
1 throttle body to inlet mani
4 inlet manifold to cylinder head as well
memory serves correctly - i think temp sensor comes with housing and means coolant has to be drained off too....

Ziggy

Ziggy122 said:

memory serves correctly - i think temp sensor comes with housing and means coolant has to be drained off too....

Ziggy

Click to expand...

You are correct the temp sensor is on the end of manifold and the two bolts holding it in are a nightmare to get a tool on. The other manifold bolts are a peice of cake in comparison. I think you would get away with only draining a little coolant out as the temp sensor is a high point in the system. Of course you would then have to bleed the system after.