tempremental starting - Renault Scenic Megane [automatic] 1.6

[kia cat]

My Renault is being a bit on the choosy side as to when it'll start up. Sometimes it's first time, others after several attempts. A fellow motorist said, "It's your cranshaft sensor, mate" Is this something a diagnostic check will pick up at my local garage. My last visit to Renault cost an arm and a leg. Any way of checking this? Bizarrely it starts better in Neutral [rather than Park] and seems to start if I try it with it in "gear" - nothing happens. Or is that just a fluke?
Thanks

[Dodger666]

You will stand a better chance of an answer by asking your question here:-

http://www.renaultforums.co.uk/index.php

[AlBags]

I agree .. I don't know a lot about recent Renaults.

[Buenchico]

I'm someone else who knows f*** all about Renaults but this thread suggests that the TDC sensor might be the cause of the problem:
http://www.renaultfor...howthread.php?t=23078

Chris

[AlBags]

Crank/TDC and Cam sensors can and occasionally do fail.
There i no telling but to connect an oscilloscope to look at the pattern, or scan the ECU.

[kia cat]

thanks for the link. I'll give that a go

[Toureman]

Your fellow motorist was probably correct, as suggestions here, the renault forum is the best place to get your answer.

I am a moderater on the Renault Forum, it is well worth joining if you have any Renault,

This thread on the forum will show you how to fix it..............


http://www.renaultfor...ght=megane+tdc+sensor

Renault call the crankshaft sensor "the TDC"

You could fix it without spending a penny, follow the instructions but 90% of the time all you need to do is clean the Sensor, after a few years the sensor pick up gets dirty and starts playing up, all it needs is cleaning, also make sure the connecter is clean.

[kia cat]

Thanks all, especially Toureman. I can give that a go.