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[moved] Help! My car wont start!


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Funny one this, I'll try and be as brief as i can! From the beginning....

About a week ago being a medling git I disconnected my battery and removed my TB to clean it. did the job, put it back on reconnected the battery and bingo, off we go again. I then realised that my TB needed to reset itself as it was tickiing over a bit high (about 1200rpm). I ordered a VAGCOM lead from egay and waited.

obviously i had to use the car whilst i was waiting for royal mail to deliver my goods and it has been driving fine until yesterday when my car cut out twice whilst in motion and then carried on as if nothing had happened.

My VAGCOM lead came today and i borrowed a laptop to do the dead with but couldn't get VAGCOM to use the serial port on the laptop it kept saying it was busy so when the laptop battery died I drove it back to it's owner to charge it, whilst I was there I left the car running and it cut out., That was at 3pm today - it's still there! It cranks fine but doesn't fire, I also noticed a clicking sound coming from where the fuses and relays are under the dash whilst I was cranking the engine.

Phew! Well thats it! The whole tale so far. My VR hasn't missed a beat since I got it March and although I will get it plugged into VAGCOM I just wondered if anyone had any ideas!

Thanks in advance

Damian :)

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im sure when i looked at mine it was noticably burned on the bottom of the relay were the pins are, from all the arcing.

i think from memory its the one to the left top of the fuse box, quite fiddly to get to.. but i may be wrong

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forgot to add, if you cant hear the pump priming when it dont start then its probaly the fuel pump relay, as these are also common. problem with intermtant faults , is that they are just that intermitant, they are a engineers knightmare

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Hi mate.. i got the same problem as u... (have another thread posted).. I have changed the Fuel pump relay on mine and replaced my camshaft sensor. I don't have VAG.COM but just a little fault code reader so left the car in ignition for 15min to reset throttle body.

Car still dies when gets warm.. and like you, starts everytime when cold.

Think I may need a garage to properly 'reset' it.

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My VR has been in the garage for two days now :( The mechanic had 'someone' come round and read the faults, he cleared them and started again and now he is saying that the rpm sensor is at fault. There is no spark. Could this be the cam shaft sensor or am i clutching at straws???

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Weird thing is mine is beginning to sound the same as yours..?

Not sure if the rpm sensor is the same but I replaced my camshaft sensor and reset the throttle body.. no luck.

Mines been at my local garage and he says that there isn't any faults indicating where the problem is. When it gets to temperature it cuts out. They check the sparks and coil-pack and there is no signal/spark coming to it. He says it could be the actual fuse-pack.. when they get old connections go bad and resistance builds up?

Garage says it's something he hasn't come across and complimented the car as its smooth and well looked after.

Mines going to a specialist to check it more thoroughly but i'm guessing that will be expensive?

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Ok. turned out to be the rpm sensor, also known as the crank shaft position sensor, not to be confused witht the cam shaft sensor! This little bugger cuts off supply to the fuel pump, injectors and the coil pack rendering your car useless. But what a difference it has made - not only does my VR start now but it is really keen to accelerate, nice :)

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  • 2 weeks later...

Hi

I've had simular fault as you two, cars run ok little bit lumpy at idle but every now and then it won't start for shit ! just turns over as normal but won't start ! weird thing is and i don't know if either of you tried but it will bump start easily, also a couple of times when i've been on my own and i haven't got a nuff speed to start it it will start off the key after my attempted bump start ? also it didn't start this morning and i could hear that click from the fuse box (but it don't usally make that noise).

When it first started doing it i brought a vag com and it gave fault codes

3 Faults Found:

00533 - Idle Speed Regulation

14-10 - Adaptation Limit (Add) Exceeded - Intermittent

00513 - Engine Speed Sensor (G28)

03-10 - No Signal - Intermittent

01247 - Activated Charcoal Filter (EVAP) System Solenoid Valve 1 (N80)

37-00 - Faulty

I thought the engine speed sensor was the fault but i wasn't sure if it was the cam or crank sensor does any know where those sensors are?

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