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M@tt

What's This Sensor?

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M@tt

Found this hanging down on the front of the engine block on my 106 diesel. I couldn't see anywhere where it should go but lookslike the little braket its on has snapped so was probably attached to something.

 

Any ideas?

 

f9af34fb.jpg

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Mikey S

looks like a crank position sensor, perhaps to check pump timing or for a rev counter.

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Rippthrough

TU crank sensor Matt, you vandal.

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Henry Yorke

Does it still run?!

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Tom Fenton

Of course it still bloody runs, it has a mechanical injector pump!

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M@tt

yeah it runs fine (well part from the jerky acceleration and massive smoke cloud on startup ;)) and has been there since i bought the car, i didn't break it honest :ph34r:

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Henry Yorke
Of course it still bloody runs, it has a mechanical injector pump!

...so the point of the crank sensor is.....? Peugeot don't usually pop things on just for fun!

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Rippthrough
...so the point of the crank sensor is.....? Peugeot don't usually pop things on just for fun!

 

My wiring loom says different :huh:

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Tom Fenton
Peugeot don't usually pop things on just for fun!

 

Usually I'd agree 100%, but it seems with cars from the mid 80's to the mid 90's they had some weird fetish for fitting crank sensors not wired to anything, with a plug fixed to a bracket somewhere, presumably for some kind of special diagnostic oobie-doobie at the main dealers to plug into.

 

Most of the early carb and distributor TU engines I have seen have one, although on older cars quite often its gone missing by now as it is little more than extra weight! As two examples, a 205 1.1 Junior I once owned of 1988 vintage had one, not plugged in, with a carburettor and distributor. Also my 1989 205 GTI 1.6 has one, also not plugged into anything.

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Rippthrough

Just for further fun my camshaft has a distrbutor and fuel pump drive, it's an in-tank pump and electronic ignition...

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