G28 Implausible Signal

[sotal]

I've got a few minor faults with my Galaxy at the moment which I'm working through.

 

The main and worst one is that it won't rev past about 3000 rpm, this point does vary though between about 2800 rpm and 3800rpm.

 

When it hits this point the car loses all power and judders and the rev needle jumps up and down, going right down to zero some of the time.

 

It does this everytime, so can be replicated on the drive.

 

Each time is does it, it throws a 16705 error: Engine Speed Sensor (G28): Implausible Signal.

 

Can anyone confirm this will be the crankshaft sensor on the front lower right of the engine. Held in with a 9mm multi spline bolt?

 

When I phoned VW they suggested it could be the crankshaft sensor or the camshaft sensor.

 

Is there anyway to use VCDS to determine which it is for sure?

 

Thanks

[chrispb123456]

Aah ha your on here as well, just to confirm then G28 is to the right of the oil filter housing

[sotal]

Thanks (again) ;)

[sotal]

Got a replacement sensor but the engine won't even start with the new one in! Old one back in and starting again.

 

 

I got the new one from VW with part number 038 907 319F which is what they found from their computer for a Sharan with an AUY engine (mine is an AUY 115bhp).

 

Is it the wrong one? They're ordering another in as they think it must be faulty but I'm worried they got it wrong!

[chrispb123456]

Hiya

 

Not actually tried this but read this link, you may be able to test your sensor/s with a voltmeter, although I'm sure looking through measuring blocks on VCDS you can see the timing, iirc 004.

 

http://www.virtualmechanix.co.uk/sensors/88-crankshaft-sensor.html