Rough idle issues...?

[mboon]

Hi all,

After sorting the overfuelling issue with my Escort I now have a rough idle problem.

The car revs fine and I have driven it down the road only a few hundred yards and help it in gear and she is not missing or anything when being reved and no miss when the boost kicks in although not had a chance to winde it up.

I removed one of the plugs and it is sooted up... could this be why it is not idling very well?

Or do I need to adjust the phase sensor?

I have recently replaced

Plugs
Group A Coil
Ignition amp
3 bar map sensor
dizzy cap
rota arm in the dizzy
phase sensor

I have gapped the plugs to 0.6

This is a video of what it is doing



Thanks in advance

Mark

PS she is going in for MOT tomorrow.

[Scouse]

That could be a vac leak that.



Scouse.

[Paul Cos]

Are you running closed loop?

Mine does this when it is on closed loop.

[Tore_TJ]

Are you running closed loop?

Mine does this when it is on closed loop.

Afaik closed loop shouldn't be running on idle.. I assume you're talking about lambda.

I'd try another set of plugs. The massive overfuelling you've had isn't good for them at all..
Or at least try to give them a clean..

[mboon]

Ok new plugs woll go in her after the mot. Anything else could cause this?

[mboon]

Sorry not running closed loop.

Drove the car to the MOT station today and although lumpy on idle and a very slight miss on low revs it boosted and took off fine (Not given it hardly any just enough to see if the boost cuts out)

Would a incorrectly gapped phase sensor cause this or am I looking at plugs and checking for VAC leaks? I am guessing the VAC hoses are on the right hand side of the engine bay?

thanks

Mark

[grcossie]

You can have vac leaks on plemium and inlet gaskets too. Vakum hose to map sensor is a normal failure

[mboon]

OK that has been moved about so could be the problem. I will take it off and double check it is OK.

So could the plugs being sooted up be a cause? I dont want to replace the plugs if it is going to soot them straight back up..

Can you clean plugs in petrol? I have a new set which are sooted up...?

[Mike Rainbird]

The plugs are probably fouled up from the over-fuelling issue. Just put another set of new 071s in .

[mboon]

OK lovely, will do.