engine speed sensor???

[Ciaran 4]

hi just carried out a vagcom and this is what my car has come up with. I take this is a crank shaft sensor?? only reason i ask is that i changed a crank shaft sensor in october and wonder has it failed again or could it just be dirty?? or could the marks on the flywheel be damaged/dirty??

is their any set way of checking the sensor to tell if it's a dud or not??

is their any reason why these sensors fail??

the fault code was reset and the engine was turned over again and the code returned so presume it's correct.

I HAVE READ THE OTHER THREAD ON THIS ALTHOUGH THEIR SEEMS TO BE CONFUSION BETWEEN THE CAMSHAFT SENSOR AND THE CRANK SHAFT SENSOR!!

[StuartVR6 0]

http://www.ross-tech.com/vag-com/faq_2.html#2.7

Hi the link above maybe of some interest,

Stu

[Ciaran 4]

2.7 Are there any Fault-Codes that can and should be ignored?

Yes. Most 1995 and earlier Bosch ECU's will show you a DTC 00513 - Engine Speed Sensor (G28) if you scan them when the engine is not running. This fault code goes away by itself once you start the engine. If this sensor were truly defective, the engine would not run at all! Please ignore this code.

copied from the link and it says if the sensor were defective the car would not run. my car won't run it does not even have a spark and the fuel pump does not prime

[jezmoz 0]

i don't think the speed sensor is you fault mate. It'll be something else. Have you checked all the basics, battery, plugs leads? Checked everything is connected correctly? Is there any power at all, is the throttle body whining etc. Might be starter motor, dodgy alternator, immobiliser??, coil pack. Could be anything mate, sorry i'm not helping much,

[richievr 1]

copied from the link and it says if the sensor were defective the car would not run. my car won't run it does not even have a spark and the fuel pump does not prime

^^^^^^

that could well be your fault. if the engine speed sensor (crank sensor) is broken the ecu will not know the engine is turning over so therefore will not provide either spark or fuel. a friend of mine had exactly this with his 8v gti, changed crank sensor, fired up 1st time.

do you know anyone with a running vr you can borrow the sensor from temporarily to see if that is your problem?

[richievr 1]

and.. they do fail quite often. i sell quite a few through work.

[Ciaran 4]

it is the second one that has failed in 6 months surely thay excessive?? iv maybe done 3k at the most. nobody near me with a vr6 which is why i like it.

going to check the sensor in the morning got this from another thread

To make sure that the sensor has gone can you check the resistance across the sensor. The sensor should be white, and you need to measure across pin 1+2 and you should have a resistance between 480-1000 ohms with the plug disconnected, also check pins 1+3 and 2+3 there should be no continuity or open circuit between these pins. If any of these tests show any thing other than specified it will prove that the sensor is faulty

[richievr 1]

good luck.

could also be a dodgy wire or connection?

[Ciaran 4]

it is a possability starting to get fed up of this crap now could be time for a new car soon hope it's just the sensor

[Ciaran 4]

god dam it gave me a reading of 848ohms take it the sensor is ok then think i might try one anyway can always take it back if it does not work