Fault Codes 17608 & 16395 ???

[johno1404]

Hi

As in the title i am having a few issues with my 04 LCR. I have to codes below come up

17608 - Boost Pressure Control Valve (N249) Mechanical Malfunction P1200 Intermittent

16395 - Bank 1 Camshaft A (Intake) Retard Setpoint not Reached (Over-Advanced) P0011 Intermittent

I have been searching and reading loads about the 17608 code. Various people talking about it might be a faulty N249 or a faulty N75. Also had an interesting read about someone having idle problems and power loss. It turned out to be a split hose under the intake manifold.

These are the same issues that i have been having for a few weeks now, I have checked all the hoses as best i can and cant seem to find any splits. The only thing i found was the vacuum pipe from the recirc valve was abit loose. I have tightened that and cleared the codes but still no luck

Is it possible that the bailey recirc valve i have is faulty? i had the forge 007p on my previous car but this was on it when i brought it

Not really sure what i need to do with the 16395 code. Ive been on wiki.ross-tech.com and that simply says to check the Camshaft Adjustment Valve 1 (N205), Check Fuel Pump Relay (J17) & Check Mechanical Timing

How do i go about checking those valves etc???

Sorry for the essay but thought i should say all the details i have

Any help would be a great help

 

[8bit]

I had the Camshaft code around Christmas time, that one plus it's opposite code for "Over-Retarded", I'd clear the code and after a while one or other code would appear. After a week or so they stopped and never came back. I'd clear it and check again in a couple of days. Camshaft adjusters are linked to oil pressure, have you had any oil pressure issues lately?

N249 isn't your recirc/dump valve at all, it's the plastic box in the middle of a rats nest of ugly, black, rubber hoses sitting on top of the block on the 3rd and 4th cylinder coilpacks. It can be safely bypassed, see here - http://www.seatcupra.net/forums/showthread.php?t=215866

There's an electrical connector on it too, worth making sure that's securely connected, if its' bypassed it may still appear "faulty" to the ECU but the code for it can then be safely ignored.

 

[johno1404]

Well I'm glad to see it's not just me then. I've cleared the codes so I'll check in a couple of days and hope for the best. I'll check that link out and order up the bits to bypass the n249

Thanks

 

[nath.lcr]

What is a n249 bypass ?

 

[johno1404]

Ordered myself a shiny new Forge 007P from Forge today. Along with some 4mm Silicone vacuum hose and treated myself to a Forge key ring while i was at it

Hope it sorts my problem as soon as i get the bypass done.

Nath here is a link that explains what the bypass does. http://www.seatcupra.net/forums/showthread.php?t=42406&highlight=n249

 

[johno1404]

Ive just rechecked all the hoses i can and cant find any splits etc. I decided to give the throttle body a clean. It was really really dirty. Put it all back together, took it out for a spin and now it seems like its in limp mode. I have really low or no boost what so ever.

HELP HELP HELP

Im at a loss of what to do next

 

[8bit]

Ive just rechecked all the hoses i can and cant find any splits etc. I decided to give the throttle body a clean. It was really really dirty. Put it all back together, took it out for a spin and now it seems like its in limp mode. I have really low or no boost what so ever.

HELP HELP HELP

Im at a loss of what to do next

You need to do a Throttle Body Alignment using VAGCOM or VCDS (registered version of either required). http://wiki.ross-tech.com/wiki/inde...Drive-by-Wire_.28DBW.29_Engines_using_KW-1281

Follow *only* that section there, your car is a DBW (Drive By Wire) type using KW-1281 protocol so that's the bit that applies to you.

 

[johno1404]

Right im at even more of a loss now.

Ive done the N249 bypass. Replaced my Bailey recirc for a Forge 007P (brand new). Check as many hoses i can see or get my hands to and removed and cleaned the throttle body. Also done a throttle body alignment.

I now clear all codes. I take it out for a spin. it seems rapid and then suddenly i have a huge power loss.

Re check the codes and i have this come up

17705 - Pressure Drop between Turbo and Throttle Valve P1297

Looked on the Ross-Tech site and i have done pretty much all it says for me to do to cure the problem. Havent replaced the n249 just bypassed it though.

Dont know what to try next???

 

[8bit]

It won't be the N249 then. That code means there's a boost leak somewhere. I was getting that for a while cos my Forge 007 valve was sticking open, allowing boost back into the turbo intake.

Take the Forge valve out and try this - using a pen or something, push the piston in from the bottom. Holding that there, put your finger over the small vacuum pipe at the top. Release the pen - the piston should stay in place. Now remove your finger from the top - the piston should snap back to its' normal (closed) position. Repeat this a number of times, if it doesn't do either of these then it needs re-lubricated.

Is your car remapped? Which way round did you install the Forge valve?

 

[johno1404]

I did that check on the forge 007p before I put it in and have just rechecked it and all seems ok. Here is a picture of the way my valve is. I'm sure it's right but thought I would check.

Is there any really common hoses that split etc and are really hard to see?

 

[jon_boi_91]

a turbo boost pressure drop has become an annoying thing,
when it comes up with a code and says turbo boost pressure drop, it can be the turbo itself, its when they first made the variable vain turbos, they didnt work aas long as expected and some models at VW were recalled.. sometimes the vains get clogged up with shite and dont work properly,

it may be worth running a fuel system cleaner through to see if it will help.

 

[johno1404]

Ok cheers fella I'll give that a go and see what happens

 

[8bit]

I did that check on the forge 007p before I put it in and have just rechecked it and all seems ok. Here is a picture of the way my valve is. I'm sure it's right but thought I would check.

Is there any really common hoses that split etc and are really hard to see?

OK, unlikely to be the valve sticking then, and it's the "right" way round. Can you log the car using VAGCOM at all? Block 115 to see requested boost vs. actual.

There are lots of hoses that can split and cause this code, the most common ones are hard to get to, under the intake manifold usually. Check the two coming off the charge pipe, the larger one runs to the DV and the other to the N75 valve.

 

[johno1404]

I dont have VAGCOM myself as i have a mac but im just trying to find someone local that can help me out. Im gonna have the car on a ramp tomorrow co will hopefully be able to get around it abit more and double check all the hoses etc

I checked the hoses coming of the charge pipe this morning and there is no splits etc in those

 

[rsmith]

Is this car remapped by any chance?

 

[johno1404]

Yes mate it has a Custom Code Stage 1 remap

 

[rsmith]

When was the map done? Some maps can through this error if iat's are under 10c upon startup but it's accompanied by limp mode, also what are your fuel trims like in block 032, surely if u do have a boost leak these will be out of whack as metered air is being lost.

I always remembered this error being a total pain in the a$$ to get shorted.

 

[johno1404]

The map was done by a previous owner back in July 2007. Im in the process of trying to get someone to take a look at my car with VAGCOM as i dont have it myself.

I take it i will be able to upload a copy of the data recorded in block 032 and block 115

 

[8bit]

Yes, if the log is saved then you'll be able to import to Excel and/or copy and paste here.

Regarding the other code in your first post, "16395 - Bank 1 Camshaft A (Intake) Retard Setpoint not Reached (Over-Advanced)" - get your oil pressure checked at a decent garage, and make sure they check what the spec value should be for your car. I got this one back last night after it had gone away of its' own accord around Christmas. My turbo is also failing at the moment, suspected oil starvation so I'm thinking I've got an oil pressure problem, get yours checked and fixed if necessary. Has this code come back again?

 

[johno1404]

The only code i keep having come up is 17705 now. The power seems to come and go as it pleases even without clearing the codes

Ive tried removing the n249 bypass and placing at all back to standard but now i just get a total power loss all the time

to be honest ive had enough of the poxy sensor issues on these 1.8 turbos. I might just put it up for sale!