5hane

hope some one can point me in the right direction a little

Went to castle combe today, car running all okay apart form the fact it needed to be jump started a few times - i put this down the the battery being dead as the car has sat and only really idle's as its not insured (since brands 6 months ago where it ran faultless all day)

managed to get the car all through sound check drove around the pits a little here and there and then the car died

literatly for love no money couldnt get it started since

the fuel pump was starting up with the ignition switch - so ECU is getting power

i used a large flat screw driver resting on a injector as we cranked it and i could hear the injector clicking away - so im getting fuel and i think the crank sensor should be working as they wouldnt operate if the ecu wasnt reading from the crank - im not sure about the phase sensor though ? ( i need to / will check this again tomorrow)

confirmed there was no spark, bought a brand new bosch coil at the track and this didnt help. So ordered a ignition amplifier as 12v wasnt getting to the coil, and picked this up at 3. Fitted it and still nothing.


so im a little lost really, ive already spent a small fortune on parts with no result. Does this sound like it could be the phase sensor ? i have recently changed the ECU and really hope this isnt the cause of the issues.

Cheers

martysmartie

iTrader: (1)

The crank sensor is working. You shouldn't short the injector out though, as this can damage the ECU.

Where are you checking for spark, from the king lead? Do you have power at the coil?

Martin

5hane

Sorry I proably didn't make it clear, I used the screwdriver pressed onto the injector to hear the injector clicking


Yes I tried the king lead and ht leads

I was only getting 0.5v or so at the coil (which made us think it was maby the ignition amplifier)

Cheers

martysmartie

iTrader: (1)

Where was that voltage measured? You need 12V at the coil, this is the first thing that should be verified.

Martin

5hane

From the positive side if the coil to an earth, and from the negative side to an earth

Just double checked the injectors are definatly firing

The ignition amp is getting 12v to the center pin

5hane

I just put 12v to the coil and it ran, gutted I didn't do this yesterday but anyway, does this mean it's a wiring issue ?


Edit, I have been checking contunintiy to the phase sensor, and it was unplugged when the car just started! I plugged it in and the revs blipped and it continued to run. I'm pretty confused

martysmartie

iTrader: (1)

The phase sensor has nothing to do with it, it provides phasing information for sequential injection.

So you have a power issue, it could be the standard immobiliser (where fitted) playing up.

Martin