Mk1 CDT won't start update
 

Update / looking for advice again. After previous post I have finally taken this further. I have put more fuel in tank so it's now half full. Both fuel pumps run with ignition on, stop after 30secs or so as they should. The engine turns over fine but won't start. Tachometer flickers correctly. With Easy start via EGR the engine fires but then dies. So it looks like a fuel starvation issue - but I am not sure if due to a fuel system or electronic cause. The car was running perfectly until laid up around November and during lay up battery was disconnected. It has done 90 000 miles only (though as outlined in previous post odometer now reading 999 999 for some reason). Any advice on where to look next gratefully received. Thanks!

If it is the pump, what worked for me when I had this
Issue was once I put more fuel in (about half a tank) I had to
Prime the pump several times before it fired up.
I put key in position two until I can hear the pump
Prime and left it like this for 1-2 minutes and repeated this process around 5-6 times. Then the engine fired up. Prior to this, it would not fire up.

Thanks - I'll try that

Does the oil light come on with key to position II as it should before you crank the engine over?

Yes it does Mike. I know there's a reason you asked that but not sure what is is!

If it doesn't light up it points to a fault within the ECM. Try contacting Marinabrian as I'm sure he would check the ECM over if you posted it to him.

As Colvert mentioned, a faulty cam sensor would also prevent the engine from starting, as would a lack of HP fuel pressure. A sniff of easy start can help with the HP fuel pressure as the engine driven HP pump will turn a bit faster allowing it to get to the required pressure, but I see you have already tried that.

Thanks yes much appreciated.

I will recheck all the fuel issues and then consider a new cam sensor.

So situation is 75 cdt wont start after a couple of months lay up. Both fuel pumps working, fuel in tank, good flow at exit from fuel filter. Engine starts then dies with easy start. Plenum is empty. Next step I guess is to change cam sensor. But car had no symptoms of cam sensor fault before lay up and I'm wondering if anyone has seen out of the blue failure of this sensor before. If this does not fix it I think next step will be to remove ecu and send to an expert? Thanks all.

A laptop and TOAF would be my suggestion.

The odometer misreading implies an electrical fault, and that could also stop the injectors firing. A faulty K-bus is a prime candidate, and a long lay up leads to corrosion, and electrical faults.

Get the engine to tell you what it thinks the fault IS, rather than disturbing other things, and potentially causing MORE faults.

And another reason why TOAF.

Suppose you disturb the fault, and unintentionally fix it ?
And you change the camshaft sensor ?

You'll think you've fixed it.
Because you changed the sensor, and the fault went away.

But you haven't.

And the next time you're on a SMART motorway, it could fail again.
And this breakdown could kill you and your family/friends.

Or am I just being obsessive ?