crankshaft position sensor

2004 Golf GLS TDI BEW
Where is this sensor located?

Is it not down the front at the at the gear box end? Usually held in with a poxy little bolt that can be got at with a cheapy 9mm ring spanner, the kind with like 12 points in the ring and not hex.

Not 100% sure on the BEW though

Front, right side of the block, facing it. A 9 mm 12-point socket loosens it IIRC.

--Nate

do I have to remove anything to see it? I was looking for it but can't see it. any photos?

wire goes down from center of block just below the head by the oil filter housing. Held in with 1 9mm 12 point bolt (cap screw)

Its the gray connector in the pic link below

FWIW The camshaft has a position sensor; the crankshaft has a engine speed sensor.

pruzink said:

FWIW The camshaft has a position sensor; the crankshaft has a engine speed sensor.

Click to expand...

Well kinda. The crank sensor does sense speed, but is indexed to crankshaft position in relation to TDC.

I think your point is that what stroke you are on can't be determined from the crank sensor.

Ol'Rattler said:

Well kinda. The crank sensor does sense speed, but is indexed to crankshaft position in relation to TDC.

I think your point is that what stroke you are on can't be determined from the crank sensor.

Click to expand...

When you look in Vagcom at engine speed; this is the sensor that tells the ECU that piece of information. When you are at idle speed; this input (engine speed) is what the ECU will adjust the fuel injection to maintain the desired idle RPM. If this signal isn't there (or if it faulters intermittently like mine did); the car just turns off as if you did it with the key. I'm not so sure if this sensor on the BEW engines reports anything having to do with crankshaft position. The camshaft has a position sensor & the setup for knowing camshaft position is quite different.

Pumpjet engine speed sensor tone wheels have an index mark for syncing and fast starting. VE-EDC have 1 equal sized notch per cylinder and use the #3 injector lift sensor and the basic setting (assumed crank position) to sync injection.

It doesn't matter what you call it. Even nonindexed engines recover position information from the CKP (the top of each stroke), with the start of cycle being determined by an assumption combined with another input (#3 NLS).

CPK code

Hey double dee, just had a stall the other day with a CPK trouble code. Did you end up replacing yours? Any problems? Go OEM?

This sensor could lead to a no start?

Fried these wires when my alh engine caught fire due to a broken return line, I think my engine shut down when this fried, and will not start, part is on order. Assuming this tells the IP when to inject?