where should this air pipe go?

[larkin 0]

while trying to trace my lambda / mixture errors problem (melted wires on the cat end) I noticed this loose air pipe above the lambda plug:

 

its coming from the back of the air box, here:

 

wondering where this pipe should be connected up to or is this normal?

is this the air intake?

 

can anyone have a quick look for me next time your under the bonnet... Its a 2.0 16v..

 

cheers,

barry

[boost monkey 0]

Goes to the exhaust manifold, homey.

 

It's the warm air feed for when the car is starting up: as the exhaust manifold is hot pretty 99.9% of the time the car is running, that duct just takes the earm air back into the air intake system to gget the car running smoother.

 

Note: it doesn't actually recycle exhaust gases, it just takes warm air that is radiating off the hot manifold. AFAIK, it's not the root of your lambda problem.

 

hth,

 

Jon.

[Supercharged 2]

Pipe looks like it's in roughly the right place - you maybe missing the heatsheild it goes into...

[larkin 0]

cool, cheers for that guys, ill take a closer look and see if i can see any heat shield or anything else it might attach onto..

 

i think i did find the root of my lambda problems, I can see it from underneath... the wires at the sensor on the cat have their insulation melted and i can see exposed wires :shock:

 

I think there should have been a heat shield around the cable down there but mine doesn't. I reckon the wires must have got damaged from the heat of the cat/downpipe. There is heat shield sleeve around the plug end of the cable on the top so perhaps this shield was installed on the wrong end by the previous owner/garage?

 

I just need to get the car over a pit / onto a lift now so that I can repair the damaged wires and get some kind of heat shield sleeve around it..

[boost monkey 0]

Sorting lambda wiring is something you don't need a pit or a lift for, it's quite easy to do lying on your back underneath or reaching down past the brake servo.

 

hth.

[larkin 0]

yea i know but will have access to a pit tonight..

 

i have a feeling trying to solder the wires will be painful / tricky enough without having to jack up the car and crawl...