lack of power at 3000 revs

[julieade]

anyone help please just brought 1.9tdi 115 galaxy 2002 and when i try to pull away when i reach 3000 revs it just loses power and if i  am going up hill worse just had it full serviced oil filter ,oil,deisel filter,air filter etc still no power tried another maf sensor and still lack of power and some times it flies away just when it hits 300 revs helllppp please driving me mad

[Chrispb]

Sounds like you have a boost issue, if it resets after turning engine off and restarting  usually sticking turbo vanes or if your lucky a split in one of the hoses or vacuum pipes

[julieade]

is there any pics on the pipes i should check and where they am thankyou

[Chrispb]

There are about 5 or 6 air charge hoses, one of these the outlet on the turbo will need the car jacked up and the undercover removed to access even then is quite restricted, this then joins to a metal tube where it passes the O/S front of the engine to the intercooler radiator this then passes up the front of the engine to the EGR valve.
Evidence of oil leakage from any of these hoses including intercooler radiator would indicate a leak.

The vacuum pipes which control the boost pressure are many which are located on the bulkhead behind the engine, there is also a small heat shield that protects these control valves.

What would help narrow this down is if you scanned your car to retrieve the fault codes.

[julieade]

There are about 5 or 6 air charge hoses, one of these the outlet on the turbo will need the car jacked up and the undercover removed to access even then is quite restricted, this then joins to a metal tube where it passes the O/S front of the engine to the intercooler radiator this then passes up the front of the engine to the EGR valve.
Evidence of oil leakage from any of these hoses including intercooler radiator would indicate a leak.

The vacuum pipes which control the boost pressure are many which are located on the bulkhead behind the engine, there is also a small heat shield that protects these control valves.

What would help narrow this down is if you scanned your car to retrieve the fault codes.

i have scanned and no fault codes coming up the car flies along when its going its just when youhit the 300 revs it wont go any more it looks like bit of spray of oil by inter cooler but cant see any oil on pipes could it be cooler

[alexk]

I found my leaks by putting my head under the bonnet with the engine running. You'll hear hissing from under where the water overflow reservoir is if there's leaks

[Chrispb]

i have scanned and no fault codes coming up the car flies along when its going its just when youhit the 300 revs it wont go any more it looks like bit of spray of oil by inter cooler but cant see any oil on pipes could it be cooler

Are you using a generic code reader or Vagcom/VCDS I find it hard to believe you have no fault codes.
Try running the car with the MAF disconnected, then rescan see whether a MAF fault is logged.

It's quite common for the end caps of the intercooler to have oil leakage just depends how bad

[julieade]

  has anyone got any pics to show me where the pipes am to check to see if they are leaking would smoke test find it  thankyou

[julieade]

has anyone got any pics to show me where the pipes am to check to see if they are leaking would smoke test find it  thankyou

i took maf sensor plugoff and it drove rubbish but no fault came up only drove it for about 5 minutes thou very fast with maf back on just when you hit 2800 revs it just wont pick up anymore 

[Chrispb]

Can I ask you what your using to check for fault codes, running with MAF disconnected would have logged a fault just by starting the engine.

Typically 17552 Mass air flow sensor (G70) Open or short to ground P1144 35 00

Ideally Vagcom/VCDS lite as it is matched to the VAG group cars electrics which the MK1 & 2 galaxy's are, just a couple of exceptions, galaxy's with the 2.0 & 2.3 petrol engines are Ford units and cannot access the engine module but can be used on all other available modules.

[julieade]

just a bluetooth obd2 scanner is that why it isnt picking anything up

[SilverBeast]

Yes you need one of these http://www.ebay.co.uk/itm/VAG-GROUP-USB-COM-PORT-OBD2-II-KKL-ECU-DIAGNOSTIC-CABLE-LEAD-VCDS-LITE-409-/201122295451?pt=UK_Diagnostic_Tools_Equipment&hash=item2ed3d2ae9b and the free VCDS-LITE Software downloadable from the Ross-Tech Site http://www.ross-tech.com/vcds-lite/download/index.html

[julieade]

having it scanned today with a a auto technician see what codes he comes up with cant understand it because it flies along just looses it when it goes to 2800 revs thankyou will let you know what chap comes up with ok

[Chrispb]

I would hazard a guess either,

17965  P1557  Positive Deviation = Overboost

17964  P1556  Negative Deviation = Underboost

Both will cause the engine ECU to go into limp mode.

Lets see what the tech comes up with.

[julieade]

I would hazard a guess either,

17965  P1557  Positive Deviation = Overboost

17964  P1556  Negative Deviation = Underboost

Both will cause the engine ECU to go into limp mode.

Lets see what the tech comes up with.

it came up with mass air flow  which i knew it would because i took it off and also 17965 i have took back heat sheild off and run engine but cant see any loose pipes or hear any air hissing he cleared all codes blasted few miles and then retested it and no codes came back and it fled so will run it for few days see if it goes again then take it back see if it has brought codes back up

[Chrispb]

Yes I'm sure you knew it would come up with a maf error code
the 17965 overboost code is quite common with a vnt turbo it's usually caused by to many short start stop journeys which clog the vanes in the turbo so don't bother looking for splits in the air charge hoses as that's not the problem,
driving it like you stole it sometimes helps or using innotech to clean the turbo on the car or remove the turbo like I did and take it apart and clean it.

[julieade]

what do you do with the inotech cleaner put it in the tank

[Chrispb]

No it doesn't go in the tank
Look up on ebay Innotec turbo diesel cleaner that will explain how it works however it does require you to remove the exhaust to fit a temporary blanking plate.

[julieade]

ok will look is it hard to do

[julieade]

i did notice that one pipe on top of engine has been cut and both ends blanked off what is that for pleaseshall i refit it back

[Chrispb]

ok will look is it hard to do

Removing the exhaust from the turbo hardest part exhaust flange nuts get rusted and sometimes shear off

[Chrispb]

i did notice that one pipe on top of engine has been cut and both ends blanked off what is that for pleaseshall i refit it back

Take a photo of the pipe and attach it to your post then we will know what pipe you mean.

[julieade]

this pipe what goes into silver thing on top of engine the pipe is cut and blocked off for some reason

[Chrispb]

That's the EGR valve (exhaust gas recirculation)
Now it may have been disconnected because the diaphragm is leaking or may have been disconnected to reduce the  soot and crud into the engine.
It's been talked about on many forums about blanking off the EGR valve although not strictly legal see link below owners claim to have improved performance and MPG

https://www.fordmpv.com/smf2/mk3-galaxy-reference-library/the-dot's-view-on-modifying-your-car's-egr-system-408/

On a personal note I've tried running it with and without it connected and not seen any noticeable difference.

[julieade]

so whats that pipe do is the silver round thing the egr on top of engine should i connect pipe back up

[Chrispb]

Yes egr is what the vacuum pipe connects too, your choice whether you reconnect it as I said it may have been disconnected for a reason.

[julieade]

Yes egr is what the vacuum pipe connects too, your choice whether you reconnect it as I said it may have been disconnected for a reason.

since i had the codes cleared the car has been flying but today the car lost power again going to get it plugged in again tomorrow see whats happened rhrhrhrhrh

[Chrispb]

Clearing the codes will not cure the problem, make a note of them.
If its the 17965 come back then you need to clean the turbo.

[julieade]

Clearing the codes will not cure the problem, make a note of them.
If its the 17965 come back then you need to clean the turbo.

went down motorway today 70.80.90 no problem at all cant understand it couldnt get codes read today will try tomorrow cheerz

[julieade]

have you heard of that revive is that any good will that clean it i wouldnt know how to get turbo off to clean it (:-{