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Old 23-07-2013   #31
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

I have just had another look under the bonnet and I dont think the picture of the used pipe I posted on here is the missing pipe on my car. My MAF to turbo inlet pipe does have the long piece going to the back of the engine, it comes off the pipe that goes through the MAF and to the turbo inlet.
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Old 23-07-2013   #32
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

I will go out and have another ferret around mine when it stops raining cats and dogs . This is getting under my skin good and proper as I have been in your position in the distant past . The worst part is the mistaken feeling its your fault when you know its not!!
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Old 23-07-2013   #33
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Right now we are getting somewhere !?? I can see on my car your missing tube, it comes off the intercooler pipe (which has the misting on the top of it) and curls round and goes underneath the engine side of the air filter body but I cannot see (or feel) where it goes to. It may indeed go into the air filter body but I cannot remember if there is a hole in the outside casing for it to join onto as it was last autumn when I cleaned the K&N filter I have in there.
If it does I cannot understand why a sealed system like the intercooler would have a "drain"to the dirty side of the air filter it could lead to allsorts getting into the air system.
One thing is for certain, the car will be better off with it than without it no matter what the garage said. This whole episode is bizarre
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Old 23-07-2013   #34
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

So I am told by the Fiat dealer the missing pipe should be shown here if it runs to the air box, but I am not sure. Also has anyone already got the paid for version of ECU scan anywhere near to Kingswinford in the West Mids? I have already spent so much I dont want to pay the 50 euro to upgrade mine so that I can change the settings for the injectors
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Last edited by 1fiatfan; 23-07-2013 at 15:11.
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Old 23-07-2013   #35
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Quote Originally Posted by 1fiatfan View Post
So I am told by the Fiat dealer the missing pipe should be shown here if it runs to the air box, but I am not sure. Also has anyone already got the paid for version of ECU scan anywhere near to Kingswinford in the West Mids? I have already spent so much I dont want to pay the 50 euro to upgrade mine so that I can change the settings for the injectors
I reckon this diagram is for a different engine - the tube leaving the MAF on ours is corrugated, this one is an elbow. Might be for a new Bravo with the same engine ??
That notwithstanding the missing pipe is shown in faint coming from the RH front bottom corner of the air filter box, ending in a sort of rubber Tee piece with one open end which goes on the pipe in your photos` the other end of the Tee is blocked off. I wont stake money on it but it cant go into the air box on my car as I can get my hand onto that corner and it goes further back.
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Old 24-07-2013   #36
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Just been to the local Fiat dealer and their mechanic had a quick look, he said the missing bit of pipe is only an air box drain pipe so that if water gets into the airbox it can drain out. He said it does'nt affect the running of the car at all. His opinion is its still likely to be a faulty EGR valve as he said that he has known brand new EGR valves be faulty. He suggested I block the EGR completely at the inlet pipe and see what happens, it will put engine m/ment light on, but if it stops the stutter and woosh noise then its a faultly EGR valve.
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Old 24-07-2013   #37
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

How about this for a plan:-
1-Take the top off the air filter body and take out the air filter.
2- Hoover out the debris that is in the dirty side at the bottom.
3- Get a couple of wine bottle corks and shape to fit any hole you find in the bottom of the air filter body and shape the other to jam in the top of the open ended pipe.
4- Put some electricians tape over the top to keep it in and wrap some more round the pipe to act as belt and braces.
5- Refit the air filter and top.
6 - Start the car and if the Whoosh has gone it must be the pipe thats causing it.

I have found that its always better to rule out the little (cheap) things first before going for the expensive things. Dont forget as well , not many Fiat dealer mechanics will have seen a croma let alone worked on one.
Its also an opinion of mine that the training of car mechanics is way behind the technology "improvements" that the modern day cars present themselves with to the mechanics.
Witness--"Cant have a look at it till our computer whizz kid is back from college on Friday"
Ring any bells?
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Old 24-07-2013   #38
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Ive got the paid for version of ECU scan,im very close to stoke.Ive got a new genuine EGR that you could try if you wanted.
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Old 24-07-2013   #39
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Hey ive just thought have you checked the downpipe flexi.Mine done this and i was convinced it was a boost leak.Bloody flexi had split.
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Old 24-07-2013   #40
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Thank you both for your posts, and Buster thank you for your kind offer, I might be taking you up on that at this rate. The exhaust flexi has already been replaced and no part of the whole system is blowing.

This evening I have removed the airbox and blanked off the hole in it where the drain pipe is missing. I also blanked off the open ended drain pipe below, result is no difference at all. Airbox was already clean as I hoovered it out and replaced the air filter a few weeks ago. Even though I was told the EGR valve was replaced before I bought the car I am going to either blank it off totally where the feed pipe enters it, or try replacing it.
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Old 25-07-2013   #41
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

The process goes on
While your having a go at blanking off the EGR , about a couple of inches away from the EGR is the Intake manifold pressure /temperature sensor . Take it out and clean it -just undo the single screw and disconnect the wiring plug (be careful not to lose the screw down the back of the engine. When I did mine it came out looking like it had a black afro haircut!! cleaned it with WD40spray and a bit of GENTLE prodding /poking. The difference it made to the running of the car was .
This was due to the fact that it "provides info to the ECU to set the VGT actuator and therefore the turbo pressure, to optimise engine operation and to adjust INJECTION TIMING"
Taken directly from the Fiat training outline.
As I said try the cheap jobs first
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Old 25-07-2013   #42
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Thanks but I have already replaced both the the MAP & MAF sensors with other used ones. I know its not ideal but the cost of keep guessing and replacing suspect parts with brand new ones is not viable for me.

After checking all the pipes I could, I tried about 3 weeks ago fitting another boost pressure control valve/solanoid and that made no difference at all either. After that, when the mechanic spotted the blown out of shape intercooler we both suspected that was the problem, either leaking or blocked, but it was neither blocked or leaking, quite how the bottom of it got blown out of shape is a total mystrey, maybe thats a clue, but I for sure dont have the answer, my guess would be that at some stage the car had a blocked DPF or exhaust and that blew the intercooler out of shape. The DPF is certainly not blocked now as I checked it in ECU scan, its regenerating nicely every 500 kms or so. Any other ideas how an intercooler gets blown out of shape anyone ?
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Last edited by 1fiatfan; 25-07-2013 at 15:10.
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Old 25-07-2013   #43
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Well the intercooler is on the inlet side and the exhaust is outlet so I doubt that they are linked. Is the damage definitely internal or could it be accident damage?
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Old 25-07-2013   #44
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Hi Halilson - For sure not accident damage the condensor in front was the original one and the intercoolers fins were all blown wider at the bottom of the intercooler, take a look at the photo of the intercooler before it as changed, really odd.
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Old 25-07-2013   #45
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Re: 1.9 m/j stutter and wosh noise at 1800 rpm

It could've had a turbo fault that damaged the intercooler and the previous owner just replaced the turbo and not the intercooler.
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