Hi does anyone know what this is?...

[pascal21]

Hi does anyone know what this is?... (see photo)
Should it have a valve on it or a tube, should it be bent like this? it suchs air in so im assuming there should be something on it. my 3.0 v6 runs like crap once it warms up a bit, but no overheating, all since it backfired one day. would this have anything to do with it? any ideas much appreciated.
thanks, David

[TonyN]

when they backfire they can bugger up the airflow meter, it pushes the flap arm over a stop pin and it gets stuck. LPG trucks do it all the time.

that should have a hose on it to, need to find a pic for you.

[pascal21]

thats exactly what happened, its LPG converted. Is the AFM fixable when it does that?


If you have a photo of the tube and where it goes that would be so so helpful.

thanks, David

[TonyN]

if you want to electrically test it...



there is some pics of one with the lid off here...

http://www.hiluxsurf.co.uk/forums/sh...ight=truckarms

It was showing a different problem to yours, but might be useful.

[pascal21]

AFM test

Cheers Tony I tested the AFM at those points and everything was fine. maybe its something to do with that little pipe sucking in air- is it supposed to have a valve on it or a tube going somewhere?
Thanks, David

[truckarms]

my pipe like that has a big screw in it blocking it off!!!

I think it originally had a plastic valve (allowed air out but not in as T said) but that got broke or lost.

block it off, if the car still runs rough, i would try the following:

1. check spark plugs and leads are ok
2. check all valume hoses are hooked up.
3. check egr (as in disconnect it)

if none of them help then its time to start replacing stuff and cleaning stuff (plugs, distributor, air filter, leads, air intake, throttle body etc)

the US site is very good for V6 info its worth having a look there if you have a specific problem but if you dont know what it is they will tell you to start with the list above.

Good luck, i know what its like when its running rough, my lpg plays up every now and then, so I have got good at checking all the above regularly.

[truckarms]

http://www.off-road.com/trucks4x4/da...06002/0612.jpg


link to picture showing what it looked like on someone elses car. not mine

[pascal21]

Thanks so much guys, you guys are so helpful its unreal. pay a mechanic £30 and he doesnt have a clue. cheers

[PDR]

If it helps I can take a photo of the engine in my 3:0 V6 Petrol.