ruff idle breathing problems

[pros]

hi ive got problems with audi a3 20 fsi 2004 53 plate. it wont idle ,after been looked at the garage,they say it to do with the breathing, it seems to be suckin the oil filler cap, when you take the oil filler cap off it runns a little bit better! they said pcv valve but my model does not have one?? any ideas. its chuckin cam sensor faults,has thoe the cam int in sink with timing, coolent radiator sensor brake boost they been checked all ok, they said because of it pressuring up in crank case that will be showin the faults
help help

[Crasher]

Yes it does have a Positive Crankcase Ventilation valve, it is on the cam cover and if it is an AXX engine it should be 06F 129 101 L, they cost about £25 from Audi. These valves do cause problems and have been superseded twice. We can’t help you with the other codes unless you are less vague about the description, we could do with the code numbers.

[pros]

Yes it does have a Positive Crankcase Ventilation valve, it is on the cam cover and if it is an AXX engine it should be 06F 129 101 L, they cost about £25 from Audi. These valves do cause problems and have been superseded twice. We can’t help you with the other codes unless you are less vague about the description, we could do with the code numbers.

my engine code is axw 011081 2004 53 plate help please

[pros]

hi my engine number is axw 011081 20fsi 2004 53 plate

[pros]

phoned dealers asked for a pcv valve they said my year model dont have them!! advice help

[Crasher]

Sorry, I m looking into this but I have a rotten head cold that is driving me nuts, give me a bit of time…

[pros]

Sorry, I m looking into this but I have a rotten head cold that is driving me nuts, give me a bit of time…
ok thanks mines hurting with thinking to hard how to fix my car

[Crasher]

The PCV valve on an AXW engine is built into the cam cover and is not replaceable so a new cam cover has to be fitted, part number 06F 103 469 and about £95 from Audi.


http://i222.photobucket.com/albums/dd20/Crasher1964/AXWcamcover.jpg

[pros]

The PCV valve on an AXW engine is built into the cam cover and is not replaceable so a new cam cover has to be fitted, part number 06F 103 469 and about £95 from Audi.


http://i222.photobucket.com/albums/dd20/Crasher1964/AXWcamcover.jpg
thanks for the info ill order one on monday , i hope that cures my problems

[Crasher]

Check with the dealer to make sure I have the correct part number for your engine.

[pros]

Check with the dealer to make sure I have the correct part number for your engine.
hi
correct part number,
ive taken rocker cover off removed gasket ect , find what looks like the pcv valve, is they anyway of checking thats it working?? air blows both ways has ive had my mouth round both ends lol

[Crasher]

Ist kaput!

[pros]

ive fitted new cam cover pcv but its still not wanting to idle !!!!its not suckin the filler cap has much!
when i first rev it, it pops back in airbox then revs good, but it wont tick over smoothly its lumpy then cuts out!!! help any ideas

[Crasher]

Disconnect the PCV valve pipe from the cam cover and plug it so the throttle body cannot breath air through that pipe.

[pros]

Disconnect the PCV valve pipe from the cam cover and plug it so the throttle body cannot breath air through that pipe.
just done that it ticks over the same! dont rev has good

[Crasher]

In that case I think you have either an air leak after the throttle body or another deeper problem that needs investigating using diagnostic equipment such as looking into the cam sensor issue. I think you need to find a VW specialist near you rather than the people you have been using.

[pros]

In that case I think you have either an air leak after the throttle body or another deeper problem that needs investigating using diagnostic equipment such as looking into the cam sensor issue. I think you need to find a VW specialist near you rather than the people you have been using.
thanks ive had a audi specialist on it he said it was down to the pcv valve the diagnostics equipment was crank sensor cam sensor ect he checked them said they were ok, he said the map sensor (fitted new one)was showin to high ,showin that it was positive breathing or something like that, im stuck now ive even removed/replaced breather line unit!:confused::confused:

[Crasher]

It looks as though the PCV valve having failed was not the complete source of your problems. You need to know if there are any hard codes on the ECU now, without a diagnosticx system to keep clearing and checking plus studdying live data, you are stuck.

[glen poole]

On my 1.8t my crankcase breather valve which was located near to the oil filter had perished, this was the cause of my pcv valve to break & start hissing, lumpy idle & poor mpg, cleaned out associated pipes which were pretty gunked up, got both valves from audi as vw had to order them & i wanted them that day, fitted them in 20 mins & 5 months on the car runs sweet.

[pros]

ive checked again for airleaks cant find any!!when its tickin over its on 3 cycliners, if i unplug sparkplug 4 when its tickin over it makes no differance! changed coil pak still same. it revs ok, any ideas?:confused:

[Crasher]

Possible compression or injector problem.

[pros]

Possible compression or injector problem.
hi just done compression test all ok 140-150 0n all four, its weid ticks over on 3 but revs fine,

[pros]

had car on diagnostic equipment today faults shown
17748 camshaft postion sensor incor correlation p1340 upper limit reached
19490 intake air temp sensor 2 g299 signal too large p3034 lower limit reached
18320 pressure sensor for brake boost g294 short to plus p1912 upper limit reached
17698 coolent temp sensor at radiator outlet g83 signal too small p1290 lower limit reached
1808 coolant fan control 1 open or short to ground p1672 no signal /no communication. its had s3 front conversion so the double radiator fan is only running one fan
any ideas
checked throttle body today and the flap seems to be twitching wen cars idling, after 13000 revs its fine:1zhelp:

[Crasher]

Bump this later so I read it at home.

[pros]

:1zhelp:
Bump this later so I read it at home.

[Crasher]

17748 (P1340) camshaft position / crankshaft position sensor Incorrect assignment.

This suggests that either the cam position sensor G40 is faulty or that the cam timing is out, has the cam belt been changed recently? It could also be a problem with the N205 camshaft valve, which is powered from fuse SB8 in the engine bay fuse box, which incidentally also powers the radiator fan control unit.

19490 (P3034) Intake air temp. sender 2 -G299 Signal too large*.

This could be that the sensor is faulty or that the air intake temperature after the air filter is too high, does the car have an induction kit?

18320 (P1912) Pressure sensor for brake servo -G294, Short circuit to positive*.

Check the wiring to the sensor.

17698 (P1290) Coolant temp. sender-radiator outlet g83 Signal too large*.

It may be over heating, does the fan run?

* G299, G294 and G83 are on the same power supply circuit.

18080 (P1672) Radiator fan actuator 1 Open circuit / short circuit to positive earth.

Check fuse SB8.

[pros]

17748 (P1340) camshaft position / crankshaft position sensor Incorrect assignment.

This suggests that either the cam position sensor G40 is faulty or that the cam timing is out, has the cam belt been changed recently? It could also be a problem with the N205 camshaft valve, which is powered from fuse SB8 in the engine bay fuse box, which incidentally also powers the radiator fan control unit.

19490 (P3034) Intake air temp. sender 2 -G299 Signal too large*.

This could be that the sensor is faulty or that the air intake temperature after the air filter is too high, does the car have an induction kit?

18320 (P1912) Pressure sensor for brake servo -G294, Short circuit to positive*.

Check the wiring to the sensor.

17698 (P1290) Coolant temp. sender-radiator outlet g83 Signal too large*.

It may be over heating, does the fan run?

* G299, G294 and G83 are on the same power supply circuit.

18080 (P1672) Radiator fan actuator 1 Open circuit / short circuit to positive earth.

Check fuse SB8.
thanks ill check the fuse im not sure if its had a cambelt change, it looks like its had work on the head! its got the stanard air box, i bought the car with the running problem the guy told me it only needed a map sensor lol

[pros]

thanks ill check the fuse im not sure if its had a cambelt change, it looks like its had work on the head! its got the stanard air box, i bought the car with the running problem the guy told me it only needed a map sensor lol

where is the sb8 fuse?

[Crasher]

which is powered from fuse SB8 in the engine bay fuse box

In here

http://i222.photobucket.com/albums/dd20/Crasher1964/1Kfuseboxpic.jpg

Red arrow

http://i222.photobucket.com/albums/dd20/Crasher1964/1Kfuseboxdiagram.jpg

[pros]

In here

http://i222.photobucket.com/albums/dd20/Crasher1964/1Kfuseboxpic.jpg

Red arrow

http://i222.photobucket.com/albums/dd20/Crasher1964/1Kfuseboxdiagram.jpgthanks ive checked f8 fuse its ok

[pros]

after a £1300 bill im now told i need a pair of cams because the car will not time up right! runs nice on tick over but after a couple of miles the engine mang light comes on, had cam timing re set and new cam belt , told the cam lobes are worn so thats the problem, any one got advice are pr of cams:zx11:

[Crasher]

If those cams are worn it would be extremely unusual. I have checked with my TPS and only one dealer in the last few years has bought a pair of early AXW cams and they are still showing them in stock. I think it is a problem with the adjuster units not being set up properly using the VAG setting tool, that is IF it is a problem with the cams.

[pros]

If those cams are worn it would be extremely unusual. I have checked with my TPS and only one dealer in the last few years has bought a pair of early AXW cams and they are still showing them in stock. I think it is a problem with the adjuster units not being set up properly using the VAG setting tool, that is IF it is a problem with the cams.


the garage says its the cams i dont no what to do, £440 pair . will performance cams be cheaper?

[Crasher]

Performance cams are likely to be more and stand the chance of causing many other problems. Is the engine in pieces at the moment?

[pros]

Performance cams are likely to be more and stand the chance of causing many other problems. Is the engine in pieces at the moment?
yes the cams are out the garage says , so im now in a catch 22

[Crasher]

I wish I could get my hands on them. Make it clear to him that the setting tool must be used when installing the cams so as to align the adjusters.

[pros]

I wish I could get my hands on them. Make it clear to him that the setting tool must be used when installing the cams so as to align the adjusters.
i do ive asked him if he uses the veg settin tool he said yes been doin them 15yrs ,he reckerns the cam lobes are worn bent ect has it must have had a bent valve and some one has repaired it pior to me buyin the car.

[Crasher]

The setting tool is specific to that engine, in fact there are two different versions.

[NickPicks]

It sounds like you need to take the bits of your car and get them trailered about 40 miles down the M1.

[pros]

still not done, the garage fitted cams runns nice but managment light still cums on. they fitted vt unit the plunger unit on top of cam chain still same , i realy think they dont no what there doin!!!! also said it had the wrong cams fitted !!! asif it wont run if it had the wrong cams in it

[pros]

went to pick car up thurs garage audi dave said fitted new cams & vt unit but still a problem runs nice ticks over nice but theres a problem with cam sensor engine management lite still comes on!he said he cant do anymore hes beat!! said the cam hes fitted are different to the ones he took out, he thinks it must have different cylinder head fitted. Agreed he work for nothing fitting the cams!! He said if you want he can take the lite out in dash no one will no, i just wanted my car back so i said yes i told him i wont be paying for the cams! He said he would stand the cams because labour time to remove and refit old ones wont be worth it! he did that the next day. Phoned me said car be done at tea time but you owe me for the cams £480 no fitting cost, after heated argument he said he’s taking new cams out and fitting old one back!! He said it will run the same, had no choice picked it up sat day dinner, he said it runs and drive brill, I drove off in it stopped for petrol, the car would not start!!!!!!!! Phoned the garage up he said, I cant get out phone AA, get it back to me ill look at it next week, after waiting hrs the rac recovered car on wagon. Rac said the fault is cam sensor he reset it. It started up ok but then turned it off then wont start! I feel like im on candid camera with this car:zx11::zx11:

[pros]

picked car back up on thurs still problem with cam sensor ive dropped car of to somone who no what they are doing now! never take anything to audi dave in clown chesterfield again !£1300 bill and car not done, :zx11: