A4 1.8t stalling

[hellierlee]

Ok got a 1.8t s line and it started losing power going up hills the other day and the next day it would start but stall while idling. If I put it in gear and try starting it it won't start but when in neutral I can keep it running by revving it although a little lumpy. I took the cat of and checked that as someone said it may be blocked. Also I changed all 4 coil packs today but with no difference. It is running quite rich and my spark plugs were black when I cleaned them earlier. Any help would be much appreciated or better still if any one knows a gd mechanic near Taunton in Somerset to come sort it?

 

[hellierlee]

No ideas anyone?

 

[hades-]

you really need to get it scanned
for fault codes

 

[hades-]

just an idea unplug the maf and try it

 

[hellierlee]

Ok where's the maf? Sorry just new to trying to sort things myself

 

[hades-]

the maf is on the pipe comeing from the airbox

 

[hades-]

its under this cover you cant miss it

0698-050-engine-480.jpg picture by bez0435 - Photobucket

 

[hellierlee]

Ok yeah will try that ta. So say it still stalls when I unplug the maf? Any ideas from there?

 

[hellierlee]

Ok unplugged the maf and the car runs. Still got a rattle when in idle and its there when I take my foot off the accelerator just alot faster. Sounds like a helicopter at that point. But when idle sounds like a tapping from behind the engine somewhere

 

[hades-]

noise could be anything from a heat shield to the DMFW
does the engine shake at idle ?
does it increase with the revs ?
but just get a new MAF then that problem is solved