FSI AWA
03-06-2014, 12:53 PM
Hello All
firstly big thanks to all forum contributors - i bought a 2003 A4 2.0 FSI ( code AWA ) with seemingly genuine 95,000 miles a few months back which has been plagued with minor? ( so far! ) faults and thanks to this forum i've save myself a huge amount of head-ache / expense.
so far fixed/ learned:-
1. learned about vag-com / vcds and got myself a cheapo cable and VCDS lite
2. fixed air leak in main air intake hose next to MAF sensor. ( but VCDS still showing indicating leaks by unstable pressure reading, and occasional fault code )
3. replaced old knackered MAF sensor, made a difference.
4. replaced cam position and crank pulse sensors to fix random conking out & starting issues - worked a charm. though worrying metal sludge deposit on cam position sensor - from fuel pump cam follower maybe?
5. Replaced temp sender to fix faulty temp gauge.
6. Oil & filters changed so recent post on how to reset service interval will come in very handy.
HOWEVER - the thing still runs a bit **** - misfiring etc, lack of power, rough idle, ( im thinking mainly due to vac leaks)
& have now tracked this down to a cracked breather hose ( came apart in my hand!) , which of course runs in under the intake manifold and is absolutely inaccessible without removing intake mani and injectors etc. which i would be out-of-my-depth DIY-ing. nor can i track down the correct breather hose parts for this engine. i've done a bawbag repair on the accessible end of it using radiator hose and jubilee clips for the timebeing but the whole pipe is perished and needs replaced thus a degree of dismantling required.
DOES anyone have any suggestions on someone who would be able to give a reasonable price to undertake this work ?
Where is the PCV valve on this engine? is it under the rocker cover?, or hidden somewhere under the intake mani and FSI gubbins ?
Also appears to have a timing issue - rough idle, rattle on start, ignition timing at idle all over the place when read using VCDS.
so worries about cam chain / tensioner etc after reading various forum horror stories !. but priority is to get vac leaks fixed first to see if that has any impact.
Any local info for a 'man who can' particularly welcome
Thanks again for all the invaluable information - a real fountain of knowledge.
cheers
Stuart
firstly big thanks to all forum contributors - i bought a 2003 A4 2.0 FSI ( code AWA ) with seemingly genuine 95,000 miles a few months back which has been plagued with minor? ( so far! ) faults and thanks to this forum i've save myself a huge amount of head-ache / expense.
so far fixed/ learned:-
1. learned about vag-com / vcds and got myself a cheapo cable and VCDS lite
2. fixed air leak in main air intake hose next to MAF sensor. ( but VCDS still showing indicating leaks by unstable pressure reading, and occasional fault code )
3. replaced old knackered MAF sensor, made a difference.
4. replaced cam position and crank pulse sensors to fix random conking out & starting issues - worked a charm. though worrying metal sludge deposit on cam position sensor - from fuel pump cam follower maybe?
5. Replaced temp sender to fix faulty temp gauge.
6. Oil & filters changed so recent post on how to reset service interval will come in very handy.
HOWEVER - the thing still runs a bit **** - misfiring etc, lack of power, rough idle, ( im thinking mainly due to vac leaks)
& have now tracked this down to a cracked breather hose ( came apart in my hand!) , which of course runs in under the intake manifold and is absolutely inaccessible without removing intake mani and injectors etc. which i would be out-of-my-depth DIY-ing. nor can i track down the correct breather hose parts for this engine. i've done a bawbag repair on the accessible end of it using radiator hose and jubilee clips for the timebeing but the whole pipe is perished and needs replaced thus a degree of dismantling required.
DOES anyone have any suggestions on someone who would be able to give a reasonable price to undertake this work ?
Where is the PCV valve on this engine? is it under the rocker cover?, or hidden somewhere under the intake mani and FSI gubbins ?
Also appears to have a timing issue - rough idle, rattle on start, ignition timing at idle all over the place when read using VCDS.
so worries about cam chain / tensioner etc after reading various forum horror stories !. but priority is to get vac leaks fixed first to see if that has any impact.
Any local info for a 'man who can' particularly welcome
Thanks again for all the invaluable information - a real fountain of knowledge.
cheers
Stuart