205GTI with Crank Position Sensor

[neilc 1]

I am presently converting my 205GTI to Megasquirt but have not been able to get an output from the Crank Position Sensor(CPS). I have a mi16 flywheel not sure of year. I originally tried with 205 SI but with monopoint fuel injection wasted spark ignition)and (similar to UK 1.6 GTI CPS while I could read the resistance I could not read an voltage output with a digital voltmeter. Not to be deterred I sourced an early Mi16 CPS (these have higher resistance than the SI ones 370 ohms vs 800 ohms) but still no output. Both these had a fitting depth of 24mm and I can see the toothed flywheel below. Has anyone got any ideas? Is there another CPS that should be used? Maybe the flywheel is from another peugeot model?

[SRDT 182]

The stock VR sensor can be tricky with Megasquirt on these engines. There is a Hall sensor that can be trimmed to fit and seems to work better: Valeo 254038.

[neilc 1]

Thanks Baptiste I will keep that in mind prefer to get the. Vr working as I would need to do mod to megasquirt for hall effect sensor

[Richie-Van-GTi 72 2 Cars]

What's your crank speed like and do you have access to an oscilloscope?

I recently converted mine to run an mp5.2 ecu from a 306 and had issues with start up due to a week signal. It was crank speed being too slow. I swapped to a larger body bosch 13 tooth starter from a 306TD. Solved my problem.

Also have you shielded the wires and earthed at one end to get rid of any noise.

I have now ripped all mine out and putting an adaptronic ecu in instead.

[welshpug 1,661]

any xu flywheel with teeth and any xu crank sensor should work

[petert 588]

Have you spoken with Graham Wallis? He has this 100% sorted.

[neilc 1]

Thanks for the feedback I will give a update when I have good news.  I have now that the input signal to the ecu when cranking is around 5v I have dis over Ed that I was using my DVM incorrectly