Lee_R21Turbo

iTrader: (1)

Basically my next door neighbours car has been experiencing an intermittant fault of just cutting out without any warning - usually she would leave it 5 mins & it would start up no problems.

I thought it was a fuel problem because she found that it didnt do it as much if she kept the fuel level up. I changed the fuel filter about 4 weeks ago & up until last night its been fine & not cut out once!!

Last night however she conked out in the middle of a roundabout and it wouldnt start again. Had to tow her home. When we got back I checked for spark off the king lead - strangely enough when she went to start it everytime it sparked once.......then nothing until she stopped it & started to crank it over again and then it would spark once & then nothing!!!

My first instinct is a faulty coil - I've checked & its getting a live & earth to the unit so I dont think its down to supply.

Anyone else had a problem similar to this??? Its the 2.0 petrol version by the way.

Thanks all

focusv8

King lead, so it's olde style H.t coil? not coil pack.

Do they still use ballast resistors?
Turning over = no resistor
normal run = resistor in circuit.

.

Lee_R21Turbo

iTrader: (1)

Yes mate old style HT coil.

Reckon it can only be 3 things - coil, crank sensor or possibly phase sensor??

marco polo

iTrader: (1)

Hi lee


it is the"MAP" sensor nothing else

that is located at the back of the baulk head it has 3 vaccum hoses coming of it

it is not "MAF" sensor


it's common faulty same thing happens on the diesil's aswell

i bet the orange light flashes on the dash sometimes .. thats means ecu is pick up a fault


when the MAP sensor is fault the ecu doesn't know what to do so it shuts the engine down .............sometimes wont cut out you will just notice alot power loss


the alambra/sharan/galaxy all suffer the same probs

cheers marco

Lee_R21Turbo

iTrader: (1)

Now you fuckin tell me after shes gone out to GSF & picked up a coil!!! LOLOL!!!

That is EXACTLY whats been happening - surprised it cuts everything else though - how hard would that be to diagnose if you didnt know about it.....will get a MAP sensor then & give it a whirl!!!

Nice one son!!!

marco polo

iTrader: (1)

Hi Lee

it very hard diagnose.... samething was happing to my Galaxy


i went to Fords and they put the diagnostic fault tester on it and it showed that it was the Map sensor..... i then changed the MAF sensor (wrong sensor).......lol.....

i then took the car back they said you have changed the wrong sensor ...lol....

i bought a new map sensor and fitted it .this was about 60 quid ....it has been sound now and hasn't cut out yet ...

it didn't cost me a penny to have it diagnosed as i know them in there

but that is defo your problem


cheers marco

Lee_R21Turbo

iTrader: (1)

Is it a dealer only part dya know mate.....and why the hell do they run both MAFs & MAPs......crap idea! LOL!

marco polo

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hi mate

you gan either go to VW/ford/seat /audi just ask for map sensor take the part with you


i dont know why they use these two for i guess so they fook up quicker

Lee_R21Turbo

iTrader: (1)

Just rang up Volkswagen Parts & asked for price & availabilty for a MAP sensor for a Sharan......answer....sorry sir but that could mean anything, there is no such individual part called a MAP sensor on any VW vehicle other than a Polo!!!!!

Yeah thanks you helpful twat......any ideas what else it could be called Marco apart from 'the thingamijiggy with 3 pipes & an electrical connector on it' - or maybe a part number - I cant check myself until I get home!!

focusv8

Manifold Absolute Pressure is also
Barometric Absolute Pressure

Try for a BAP this time.
.

bigneck

ask em for a pair of baps

marco polo

iTrader: (1)

Hi lee

i haven't got the old one to get the part number of it

vw call it something esle ford call it map sensor

Manifold Absolute Pressure thats the correct word for it




when you open the bonnet of the sharan if you look in the middle right back of the bulk head above the engine you will see it

there will be 2 kinds of sensors you need the one on the left hand side that has 3 vaccum pipes coming off it thats the one

thats all the problem is it will take about 10mins to fit it's held by 2x 10mm bolts

thats it and 3 pipes

marco

James

thats a air solenoid of some description, i am not sure what though.

map senser on a diesel is in the ecu though.

I reckon it'll be the coil tbh, i've had exactly the same before, and it was the coil playing up, the coilpack has a amp on the side, it's the amp that gives problems but it's all one unit, only about Ł35 though iirc.

marco polo

iTrader: (1)

james

on my galaxy when we put it on the diagnostic fault tester on it

it said Manifold Absolute Pressure MAP sensor

before changing this it use to do exactly the same what lee said , it would just cut out anytime/anywhere

you leave it for a bit it would then start up again

now if it never cut out the orange light would start to flash on the dash

it starts to lose a load of power



i changed this sensor and it's perfect no probs since

ford said it's common fault

they also suffer with the MAF sensor aswell which is located just after the air filter

prior to this I took my galaxy to VW aswell they called it a different sensor but it's located at the back of the engine bay above the engine it has 3 air pipes/or vaccum pipes of it

and lee's symptoms sound exactly the same as mine



not saying that they might be something else wrong with it


marco

James

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

i think we've got our wires crossed maybe, yours is the 16v ford engine and i'm talking about the 8v vw 2.0?

marco polo

iTrader: (1)

hi james

no mate mine is a 1.9 tdi (audi engine) ghia would this matter ?


marco

Lee_R21Turbo

iTrader: (1)

Right guys.....just to clear it up its the 8v VW engine.

Its not the coil & its not that air solenoid thingy (sorry Marco!)!!!

I noticed that all the vaccum pipes had perished beyond belief, so I replaced all those with rubber jobbies just to be on the safe side. I was sat outside in the pissing down rail the other night swapping those over. Now for some reason after fiddling with that air solenoid it started. So I thought I'd cracked it - however I tested NOT having it plugged in & it started without it so its obviously not needed for starting or running!! I think its got something to do with the EGR valve!!

I found out where the diagnostics port was located & plugged in my VAGcom - it showed NO engine faults at all!!!

Anyway last night it conked out again in a pub car park, I had a fiddle around in the engine bay but as usual nothing looked amiss!!!

Flipped the fuse cover down as I'd replaced relay number 167 a few weeks back as I was told this was another common fault. Anyway I unplugged the relay, and plugged it back in again - it started first time!!! I unplugged it whilst it was running & it conked out as I imagined it would do. Plugged it back in & away it went!!!!

Surely this cant be a coincidence.....and I doubt it was a bad connection as all contacts are clean etc....

So basically.....erm....help!!! Told her to try that trick if/when it conks out again!!! Not ideal but it might do to keep her going if she gets stuck - need to sort it for good tho!!!

focusv8

Could be a bad joint on the pin at the back of the relay socket.

What's the relay for, fuel pump, ignition circuit?

.

focusv8

just found it in here, it's fuel pump relay:

http://volkswagen.msk.ru/index.php?p=page01

service manuals, Sharan, fault finding, 5th page .

,

James

Marco, thats not the map senser mate, thats the boost control solnoid i'd say. I'm 100% sure the map senser is in the ecu on the 1.9 tdi 90/110 models. Is yours a 115/130? cos that may be different.

marco polo

iTrader: (1)

Hi mate

have you got a link like this for the galaxy




Hi lee

I dont know then sorry mate , might be relays knackerd


if you do find out whats was wrong with it lets us know


cheers Marco

mattb@corsasport

Right, from what i can make out, its an old shape sharan ( sort of around a 96 or so) Its a 2.0 8v petrol same as the mk3 golfs etc

Ok, if the ignition coil (the one on the bulkhead) has been replaced and has not cured the fault then it may be one of the following:

Power up relay for the ecu (this is a different one to the fuel pump relay iirc)
Engine speed sensor (or crank position sensor)

these are the most common faults that cause stalling on these engines..

P.S Vdub refer to the map sensor on most of its range as a 'Thrust sensor'

marco polo

iTrader: (1)

james

mine is 90bhp tdi 1997


lee

have you sotred it





mine has brokedown today just cut out again after 6 fooking weeks right in the middle of traffic lights turning right

i though it was sorted , i fooking give up now lol


marco

James

for diesels 109 relay is the biggest culprit, this powers up the ecu. iirc on the galaxy you have to drop the fuse box as it's fitted right on the back so when youre looking at it it has 601 written on it.

marco polo

iTrader: (1)

Hi James

thats the one i took out last night 109 and has 109 written on it ,


when i took this out turn turned on the ignition no ecu light on the dash

re fitted it the ecu light came back on that relay was a bit hot too be honest

what would cause the relay to get hot bad conection or something ? or it's just fooked

marco

James

usually just a bad connection inside, you can open them up and clean the connections but it's a bit of a time-bomb!

marco polo

iTrader: (1)

james

cheers ill just buy a new relay

thanks i just hope thats the problem


marco

Lee_R21Turbo

iTrader: (1)

Hi guys

Well the car ran fine for a day & then it left her stranded in a pub car park the following day!!!

Unplugged the relay 167 & replugged it back in & it started first time!!! Apparently its another common fault with these cars the central unit that controls the immobiliser fails & needs resetting, basically remove power etc.

Its been fine since & she knows what relay to remove if it does it again! LOL!

I found the answer here..... http://www.carsurvey.org/viewmorecom...ew_1256_3.html

....as well as finding out why the elecy windows sometimes play up - blocked water drain holes leading to water seeping into the footwells & then getting into the control units!!!!

Basically its just a disaster waiting to happen!!!

marco polo

iTrader: (1)

Hi lee

i had that problem too ages ago , water was gathering under the passanger seat , i took it to Ford and they said it was blocked drain holes

they unblocked them both , but was left with a dodgy central locking unit the water had killed it

i had to get another i have moved them from the seat now they are at the side of the seat now

You know what these german cars are not as reliable what people make out , i think the german electrics are worse than the italian electrics


I have another problem aswell while we are on the subject

i have heated front window screen and heated rear window

they both light up on the consel to let you know they are working but they dont work at all



fooking german sheds i dont know why Ford got involved with VAG with these mpv 's

thank god they got their own all new galaxy all bloody ford


marco

Sticky.

iTrader: (4)

Well done Lee on sorting it out

marco polo

iTrader: (1)

Hi lee

when you said all she has to do is" take the relay out and then put it back in again "

thats isn't going to cure it, i have tried that it lasts for about 10mins then cuts out again


marco

Lee_R21Turbo

iTrader: (1)

Marco.....

Never said it was going to cure it for good mate but thats what gets it going again when it fails to start!!! Does your door lock alarm led light up when you try to start it??

marco polo

iTrader: (1)

hi lee

when i put the key into the ignition so it's ready to start i wait for the orange light to go out ..........

if i dont see the orange light come on i know it wont start

when i turn the key before it starts up the red light on the door panel will light up for a couple of secs and then goes off ,

the door doesnot lock unless i lock it

i did have a problem with central locking unit before ... the unit use to go haywire ........ the windows would go up down on there own and the doors use to lock ......sometimes the back doors would lock and not the front , then the front doors sometimes would lock and not the back

marco

Lee_R21Turbo

iTrader: (1)

I meant does the door lock flash whilst cranking over!!!

Another idea mate....

Relay number 30, take it out, drop it on the deck from a couple of foot up then stick it back in & try again!!!!



That was the blocked drain holes soaking the control unit causing that!!!

Sticky.

iTrader: (4)

Still not sorted Lee

Bet its doing your head in now.....

Lee_R21Turbo

iTrader: (1)

Nope.....did it again today!!!! Time for more research!!!!

Nearly told her to get rid & get a good old German reliable car.....then I realised that it was kinda German!!!

Perhaps she should get a Renault!!!!

marco polo

iTrader: (1)

hi lee


no the door lock doesn't flash whilst cranking over

fooking sheds .... all cars are all the same same after 5yr they need looking at properly

marco

JTECH James

iTrader: (13)

marco you have a pm