Peugeot 306TD Tacho sensor

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Tue 27 Mar 2001 11:28
Peugeot 306TD Tacho sensor - John Kenyon
My 306 1.9TD has developed an intermittant fault with its
tacho - the needle more often than not drops back to zero.

The first port of call is to check connections on the sensor,
but I can't find it!

The (old) Haynes manual says nothing more than it has a brown connector!

Can anyone help me locate the thing, or have any further suggestions
regarding the fault?

Thanks
/John
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Tue 27 Mar 2001 22:44
Re: Peugeot 306TD Tacho sensor - Andrew Moorey (Tune-Up Ltd.)
Stand in front of the vehicle (with the bonnet open!!) The sensor will be on the back of the engine near the joint between engine and gearbox near the top of the flywheel. It's a bit difficult to describe but the sensor usually has a short lead attached with indeed a brown, three pin connector in it. Split the connector and using a DIGITAL multimeter measure the resistances of the sensor as follows. There are three pins, The outside two should measure infinity, one outside pin and the centre should read 300-620 ohms and the other outside pin and the centre should read infinity (infinity = no continuity.) The connector itself often gives problems which can be cured with careful cleaning.
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