wont start

[david451]

my leon fr 2008 model got its injectors/wiring replaced (recall) in aug 2012 I remember after it, if left for a time it was difficult to start like the fuel had ran back but not all the time, however overall it has been fine.

yesterday it was difficult to start like it was starved of fuel, missing as it started, when I got to my destination I left it for an hour and on return really hard to get going.

Once started it runs fine but on return to my house I turned it off then tried to start it again immediately and again pure bitch to start, missing as it fired up, but once started runs fine.

Called seat, they said to disconnect an injector at a time because if one is faulty it wont start, but did that and unless two are faulty it made no difference.

I can get it going but it has that classic symptom like the fuel has run back but as you know it cant do that because it pressurises the system. filter etc all fine, checked it again just in case anorl freezing today into the bargain. fuel pressure should be fine because it runs great at speed. injector failure seems to be total shut down when running from what I have read, not like what I have.

Any tips to check, do these symptoms ring a bell. Sent off for a code reader cause i'm stuck. Only thing I can think off is camshaft sensor perhaps and that they have upset it when they were in there, anybody tell me where it is or a picture and if they could have moved it or something.

Any advice appreciated folk kind of stuck and grounded at the minute.

 

[towcester vag]

you need to read the codes to see if crank/cam sensors are faulty
i would check the fuel filter
ive had several block

 

[david451]

you need to read the codes to see if crank/cam sensors are faulty
i would check the fuel filter
ive had several block

Need to wait on the reader delivery, the filters are fine wouldn't run at speed if it was blocked.

More interested in the symptoms since that is indicative of a particular fault and if anybody can match them to something they had.

Pissed off at the minute cant get out since I live miles from anywhere, phew.

If you want a laugh after spending hours in the cold and rain I went for a shower and the pump chucked it. Ah well at least I'm alive

 

[david451]

Need to wait on the reader delivery, the filters are fine wouldn't run at speed if it was blocked.

More interested in the symptoms since that is indicative of a particular fault and if anybody can match them to something they had.

Pissed off at the minute cant get out since I live miles from anywhere, phew.

If you want a laugh after spending hours in the cold and rain I went for a shower and the pump chucked it. Ah well at least I'm alive

Meant to say that I'm a mechanic as well, not that it helps without a code reader. seat wants 90 quid to do a test phew. I'l just wait on mine coming.

 

[david451]

read the codes today

12295 cam sensor fault

05441 fuel pump relay open circuit

05685 don't know what this one is cant find it.

The other thing the car does is it makes a loud buzz for a second as I take the key out, it comes from the passenger side like it tries to lock the door perhaps, never did this before.

The pump relay sounds like the kind of fault that would fit in with the symptoms.

Anybody know what pipes to pull off to check fuel flow.

 

[david451]

read the codes today

12295 cam sensor fault

05441 fuel pump relay open circuit

05685 don't know what this one is cant find it.

The other thing the car does is it makes a loud buzz for a second as I take the key out, it comes from the passenger side like it tries to lock the door perhaps, never did this before.

The pump relay sounds like the kind of fault that would fit in with the symptoms.

Anybody know what pipes to pull off to check fuel flow.[/QUOTE


Fuel flow ok, cleared codes in case old and new code keeps registering the others have gone, 00833, clear it run and its back again another one not in my book ffs.

 

[dave.richmond]

read the codes today



12295 cam sensor fault



05441 fuel pump relay open circuit



05685 don't know what this one is cant find it.



The other thing the car does is it makes a loud buzz for a second as I take the key out, it comes from the passenger side like it tries to lock the door perhaps, never did this before.



The pump relay sounds like the kind of fault that would fit in with the symptoms.



Anybody know what pipes to pull off to check fuel flow.[/QUOTE





Fuel flow ok, cleared codes in case old and new code keeps registering the others have gone, 00833, clear it run and its back again another one not in my book ffs.

A quick check in Ross tech's wiki shows this code as 'Ignition switch (d) terminal S: electrical fault in circuit' (http://wiki.ross-tech.com/wiki/index.php/00883)

 

[david451]

not starting

It looks like the camshaft position sensor is playing up, it had this fault after it got the injectors changed but not so bad and it was only occasional so I never bothered, and that was two years ago.

Anybody changed one and is there anything the techs could have done fitting the injectors it seems the sensor is under the front camshaft. perhaps the plugs not on properly it got a loom at the same time. might be worth checking the big plug at the right side of the cam cover as well in case its got a pin pushed back or something.

wish I had a manual

 

[david451]

It looks like the camshaft position sensor is playing up, it had this fault after it got the injectors changed but not so bad and it was only occasional so I never bothered, and that was two years ago.

Anybody changed one and is there anything the techs could have done fitting the injectors it seems the sensor is under the front camshaft. perhaps the plugs not on properly it got a loom at the same time. might be worth checking the big plug at the right side of the cam cover as well in case its got a pin pushed back or something.

wish I had a manual

sent off for a manual only 4 quid on fleebay on a disc no point bumping about in the dark anymore.

Thanks anyway folk.

 

[silver surfer]

If the camshaft sensors playing up it need to see crankshaft signal over several rotations to work out no.1 cyl to open injectors .The loom they replace is inside of head no were near cam sensor wiring ,If you had vag com you could read signal from sensor

 

[david451]

If the camshaft sensors playing up it need to see crankshaft signal over several rotations to work out no.1 cyl to open injectors .The loom they replace is inside of head no were near cam sensor wiring ,If you had vag com you could read signal from sensor

You are right just found it, looks like the belt and tensioner would have to come off to get the wiring out, but you are correct if I had vag com I would get a better idea but from the threads on here it seems even they struggle and at my cost.

I might have to take a hit to get it read if I can get it going that is. Any idea if the snap on reader is any good my friend has one in his garage.

 

[david451]

well called the breakdown guys out and whatever it is it aint sending out proper codes so its carted off to seat.

I will post what the fault is once they get back to me tomorrow, if they find the fault. Guy told me that its getting tougher to diagnose faults and some manufacturers systems BMW wont let you interogate the system and needs to go to BMW, yes you can get basic fault codes still but they are almost worthless and its a hit and miss.

Got to say as well that the car doesnt hold its value either was going to punt it until i saw what its worth phew.

 

[Nath.]

If you can get acces to the cam sensor I would get a foam tip cotton swab and clean it. it could have crap/metal fragments on it. I believe it is a hall efect (magnetic sensor)

 

[david451]

If you can get acces to the cam sensor I would get a foam tip cotton swab and clean it. it could have crap/metal fragments on it. I believe it is a hall efect (magnetic sensor)

its down to the tech boys at seat now wasted too much time on it already without the proper equipment its a shot in the dark and all the parts are time consuming and expensive. If they fit a part and it doesnt work they can return it i cant.

Years ago when i worked for vw it was the vag 2000 and although then the cars were not that complicated it still got things wrong. In fact its not that uncommon to fit a new part and find its also faulty, or fit a part that blows another. Common fault on the astra the alternator goes and blows the relay stick a new relay in and the wiring goes up like a christmas tree, and before you get the battery off its a new wiring loom.

Im gona get screwed i know that but its got its benefits like a 2 year warranty on parts and labour if they fit it, you fit it and its a big debate whether you did it properly etc.

I will make sure im sitting down when they call me.

 

[Nath.]

Why don't you get yourself an ebay special VCDS? 30 quid and you can read all codes correctly.

 

[david451]

Why don't you get yourself an ebay special VCDS? 30 quid and you can read all codes correctly.

Got one nath but it was sending out a code that was not in the book or on the internet, in actual fact it gave me three codes stored and none of them were in the book one neither in the book or on the net. I cleared the codes and it returned a code once again not in the book or anywhere else so in terms of confidence in the reader it was zero.

I have posted the code in an earlier thread and done a bit of research which might be of use to some of you guys at a later date.

It was the cam position sensor, the symptoms is difficulty starting as if it was a fuel problem, it will run perfectly once started. If stopped even for a second it will not start again, it initially started in 2012 when they changed my injectors and wiring loom, however completely unrelated and it was intermittent over the following years and not to a degree that concerned me at that time.

The cam sensor only reads during start up so once started its not reading and why the car runs perfectly, it wont throw the management light on either. Changed my breakdown to the AA who will at least have equipment to read the faults and attempt a repair, the coont that came out to me had nothing other than a set of jump leads and recovered the car to the dealer.

Got a bill of 318 quid that covers the checks and repairs.

 

[Nath.]

Doing a search, the 05685 code is an ignition switch fault. Probably the fact that is has been in the fully turned position for too long. (Starter motor cranking time out,,, maybe)

To me it looks like you have a faulty cam position sensor. as you already know this sensor is only monitored during starting. This all fits with your fault symptoms.

Fingers crossed for you.

 

[david451]

Doing a search, the 05685 code is an ignition switch fault. Probably the fact that is has been in the fully turned position for too long. (Starter motor cranking time out,,, maybe)

To me it looks like you have a faulty cam position sensor. as you already know this sensor is only monitored during starting. This all fits with your fault symptoms.

Fingers crossed for you.

Its sorted nath pick the old girl up in the morning just the cam sensor, if the breakdown guys had done their job properly and gave me confirmation that I was correct then I would have fitted the sensor myself, but in the back of my mind I knew that it started that problem after the injector replacement and at 450 quid a pop my feelings were that if one had gone down then I could have argued a discount.

 

[Nath.]

Its sorted nath pick the old girl up in the morning just the cam sensor, if the breakdown guys had done their job properly and gave me confirmation that I was correct then I would have fitted the sensor myself, but in the back of my mind I knew that it started that problem after the injector replacement and at 450 quid a pop my feelings were that if one had gone down then I could have argued a discount.

Nice one.

Back cruising again then.................

 

[david451]

Nice one.

Back cruising again then.................

Yup back on the road again nath. I hope the bits I left on the thread helps others.

All the best, Dave.