130pd code-- please read carlo etc

[stoneyfordNI]

VAG-COM Version: Release 311.2-N

Control Module Part Number: 038 906 019 DQ
Component and/or Version: 1,9l R4 EDC 0000SG 1536
Software Coding: 00002
Work Shop Code: WSC 06402
Additional Info: VSSZZZ6LZ3R163506 SEZAZ0B2630179
1 Fault Found:
16706 - Engine Speed Sensor (G28): No Signal
P0322 - 35-00 -

this code appeared on a friends ibiza mk4 , can anyone shed any light , car is hard to start when cold , but once running is fine (remapped-not switchable) problem arised 2 weeks after software change , so probably not a software issue , and when warm started , fires first time , few other codes appeared but not in engine 01 group ,

i understand the speed sensor uses data from a toothed wheel on the flywheel when starting , is this sensor on the belt side or g.box side ,

any ideas on a remedy ( new sensor) had a look today and couldnt see it ( plastic cover)

thanks for reading as always

stephen

 

[RichardBW]

could be sensor itself or even the dmf knackered.

 

[stoneyfordNI]

no vibration from the dmf ,

looks like a sensor at the min

 

[basstard]

You always seem to consider me an expert which I ain't,,, anyway,,,

Strange cos normally when a sensor goes shot or has a bad contact, it triggers an intermittent fault,,,

The problem could be either the sensor or the wiring [which would be big ££],,,
Obviously replacing the sensor first is the more sensible option, it shouldn't be that costy,,, It should be on the front of the engine, near the oil pan,,, I always thought these sensors were placed near the flywheel but a quick search on the net makes me think they're near the oil pan inserted into the block,,, they're variable reluctance sensors so this makes kinda sense anyway,,,

Take a look on ETKA to see where it is on the specific engine,,,

 

[stoneyfordNI]

i had a good poke round and the only one i could see was the cam sensor under the cover , il give it a day or too and see if the guys code appears again

helpfull as alway carlo , cheers

found him

 

[stevie.w]

stoney, its normally ok to start when cold the few times where she wouldnt start was always when the engine was warm, when the car does decide to start she'll kick first time and away you go no bother but itll just take a notion of not startin sometimes, usually within an hour or so of being switched off so the engine is still warm, it hasnt done it since we ran vag com on it yesterday and cleared that fault though.......strange

 

[basstard]

For those interested, this is how variable reluctance sensors work:

these are normal magnetic pick-up sensors [just like those on you guitar/bass] and they're located near the crankshaft [or camshaft, they're used on those too]. The shafts are forged with a particular protusion [usually small there's no need for a big one]. When said protusion passes near the sensor [the shaft rotates] the magnetic field of the sensor is perturbed and this causes a variation in the output voltage of the sensor. This is received by the ecu which in this way, not only knows the position of the shaft, but, knowing the frequency and duration of the variation in the sensor voltage output, knows the speed of the shaft,,,

 

[cheshire cat]

stoney, its normally ok to start when cold the few times where she wouldnt start was always when the engine was warm, when the car does decide to start she'll kick first time and away you go no bother but itll just take a notion of not startin sometimes, usually within an hour or so of being switched off so the engine is still warm, it hasnt done it since we ran vag com on it yesterday and cleared that fault though.......strange

that would be more normal for a sensor on it's way, when hot the break in the winding parts and no signal cool and OK again

 

[basstard]

that would be more normal for a sensor on it's way, when hot the break in the winding parts and no signal cool and OK again

I guess you missed a word or something?!

 

[cheshire cat]

I guess you missed a word or something?!

the"out" is implied in Cheshire, English lessons extra

 

[basstard]

the"out" is implied in Cheshire, English lessons extra

I don't know why but I feel a lil wound up,,,

 

[stevie.w]

the car hasnt done it since saturday now, ive changed the fuel filter put an engine flush through it and changed the oil and filter, im sort of thinkin i may of got a bad drop of diesel in it, no fault codes have came up on vag com either.....strange one.

 

[stevie.w]

well spoke too soon, the car wont start at the minute ran vagcom and engine speed sensor fault is back, so this is looking like the problem, its lookin like a trip to the SEAT garage im afraid.

 

[basstard]

C'mon, do it yourself,,, do it like a man!!

 

[stevie.w]

i wouldnt be afraid to try anythin myyself but this sounds like something id need help with, not 100% sure if this is definitely the fault and if it is could anyone stick a pic up of where this sensor is. has anyone here ever had the same problem im having with my car???

 

[basstard]

could anyone stick a pic up of where this sensor is.

errr,,, have you looked at post #5?

 

[stevie.w]

i was actually thinkin more along the lines of a photo, i cant find it, lol

 

[AwesomeSarah]

http://www.briskoda.net/forums/diagnostics-vag-com/dtc17748-detected-1-8t/13833/?highlight=g28
I found this , does it help?
Sarah

 

[stevie.w]

well it was the sensor, ended up takin it to SEAT cause was getting a bit fekked off with it not startin, there lookin 175 to do it, which i know is madness but i dont know how to change it myself, so im just gonna have to bite my lip and pay it.