EXPERT ADVICE NEEDED

[Dan_Moores]

So I've had my lupo going on 7 years now and it has served me well, it hit 100000k miles the other week and felt really good for it, until today....

I have a short list of problems it would be great if someone who knows their S**T could help me sort them out so I can keep my beloved LUPO going

 

1. Two of my spark plugs have gone today on cylinders 2 and 4 the internal parts are oily and completely shot, however sparks 1 and 3 are perfectly fine. IS there some sort of link between these cylinders and a faulty part or engine issue? I'm trying to figure out what is causing those two to go before the others (I changed all 4 plugs around 3 months ago)

2. I cleaned my Carb 4 months ago also, its still quite clean on the inside, but on the outside there is a lot of oil/fuel this then goes into my top box (where the air filters sit) is this maybe linked the the above problem what causes this??

3. When I turn the ignition on i get quite a loud high pitched constant beep (it seems to be coming from underneath my Carb) this rings for around 30 seconds then stops and happens everytime I turn th ignition on?? this one is really bugging me...

 

Thanks guys any help would be appreciated

[cj1]

No "link" between 2&4. Which parts are oily, the top part that the ignition lead plugs into, or the bottom that threads inside the engine? How much oil are we talking about? 

What do you mean by "carb" - if this is a 1.0 Lupo as per your profile then I think this is one of those situations where pictures would help massively.

[Dan_Moores]

Thanks for your reply here are some pics,

 

Perhaps I'm being a bit harsh on the carb (if it is one) it fine inside its just oily on the outside, but the airbox is quite oily, im not sure if that's normal or? I cleaned it all immaculately 4 months ago.

and the spark is oily on the thread side that's inside the engine as you can see from the pic

 

I should probably mentions I have these codes also:
 

17545/P1137/004407 - Fuel Trim: Bank 1 (Add): System too Rich

17536/P1128/004392 - Fuel Trim; Bank 1 (Mult): System too Lean

16684/P0300/000768 - Random/Multiple Cylinder Misfire Detected

16686/P0302/000770 - Cylinder 2 Misfire Detected

16492/P0108 - Manifold Absolute Pressure (MAP) (G71) or Barometric Pressure (BARO) (F96): Signal High

[cj1]

Ok, so your last photo, that's an oil breather, it's expected this will be fairly oily. Unless it's literally dripping out then you have nothing to worry about, and if it was you'd know about it before sticking yer finger in there. Is the airbox a tight fit around the hole that sits on top of the throttle body? 

And as suspected, it's a throttle body, not a carb. The 1.0 lupo is fuel injected.

 

As for the spark plugs, it is odd that 2&4 are the same. Have you had 1/3 out to look if they have anything on them? 

[Rich]

sounds like it needs a decent service.

 

map sensor is probably coated in crap too.

[Dan_Moores]

Awesome at least I know that now

So it could be that the oil from the breather is leaking down through the hole on the throttle body? I cant tell if its a loose fit but everything standard so i guess it fits how it should

 

Also the 2nd spark is pictured spark 4 is no where near as oily but has blown at the same time, I've just been to a local store for some new plugs and they said it could be a leaky piston ring?

 

New plugs are in and its running better now, I've also noticed a brown sludge in my coolant now  some forums have said it could be head gasket or gasket seal, so maybe they're all linked? Leaking piston ring/gasket seal causing brown sludge and spark plugs to be shot after 4 months, what do you think?

Also where can I find my MAP sensor? :)

[Rich]

map is in the inlet, hence probably coated in crap.

head gasket is a rare thing on these.

ring is common though.

[Dan_Moores]

Thanks for your help CJ and Rich!