206 showing voltage on crank angle sensor

[jim_todo]

Hi All,

New to the forum and to the Peugeot car worlds

Just bought a project car for my daughter as first car (once it is working and safe) - it is a Peugeot 206 CC 1.6 litre engine.

Issue - car wont start, but turns over.

I have done the beep test and all good.

After reading forums l started following the breadcrumbs towards the crank engine sensor.

Sensor was taken out and isn't producing any voltage. It is also showing as .550 ohms and waving steel across produces no voltage. So that looks like the sensor needs replacing.

Now the reason for this post. The sensor plug doesn't have any continuity to ground - either to battery or engine block. When l turn key to on and test for voltage it shows as 2.5v on both wires, which suggests a short somewhere.

I'm assuming one wire should go to ground and the other wire feed the sensor voltage to ECU. Is that correct?

Any suggestions to what l need to do?

Thank Jim

[wheeler]

What is the beep test?
Both wires from the crank sensor go directly to the ECU, there is not one going directly to ground.
Have you done any other checks like spark, fuel, ECU power up or diagnostics?

[jim_todo]

Beep test is where you test does the car recognise the key i.e. is there a BSI issue.

I have checked fuel and there is pressure. This weekend l was going to do injectors, coil etc...

I have put a reader on ecu and it connects, but no codes are shown. Note sure it it detects crank sensor failure unless engine is running.