Gte nova

[Danny gte]

Hi guys .i have a gte nova that won't start .i have spark but can't get petrol to pass through the injectors when cranking .i can get it to fire if I put a positive and negative from the battery to the top of the injectors one by one and let fuel run in to the cylinders.i have changed the fuel pump really afm dizzyecu and injection loom without success . Has any body any ideas before I loss the the plot

[mowgli]

Is it original?
There are so many things it could be. Is the fuel relay ok? And do you hear the fuel pump whirring when you turn the key?

[Danny gte]

Is it original?
There are so many things it could be. Is the fuel relay ok? And do you hear the fuel pump whirring when you turn the key?

Yes it's original I bought it not running it had sat in a shed for ten years .i striped it down for the usual welding ect .new fuel pipe tank out ect .i have checked all the usual stuff earths ect and can't get my head around what's happening

[Danny gte]

Sorry ment to say fuel pump runs for the 10sec or so when you turn on key. Also have a pulse at the injectors ,but lose it when I start cranking.

[mowgli]

You need to make sure the ecu is getting power when cranking. Has the loom been cut? As in an immobiliser etc.

[Andy]

Fuel pipes on the right way?

[Danny gte]

Hi guys thanks for replying ,I have checked the power supply at the ecu all ok ,no breaks in the loom fuel pipes seem to be the right way as the fuel is returning ok to the tank ,and when I swap them I just end up with the one from the pump blowing of with to much pressure . I have fitted a new dizzy as I thought it could have been the hall sensor but it makes no difference .i have changed all the injectors ecu airflow meter and injection loom from a mates car who converted to 40s and still no luck ,really has me confused .any suggestions welcome as I really want to stay injection

[therealnovaboy]

have you got an earth from the ecu. the ecu will need to switch each injector to earth to make it open. It could be pin 5 on the fuel ecu (should be a brown wire to earth). 454 on the wiring diagram

[Danny gte]

have you got an earth from the ecu. the ecu will need to switch each injector to earth to make it open. It could be pin 5 on the fuel ecu (should be a brown wire to earth). 454 on the wiring diagram

Have just checked pin five. have earth there ran a earth to battery along side earth on pin 5just to check ,still nothing .i take I am right in saying the only thing that tells the injectors to pluses is the dizzy and the ecu ????

[therealnovaboy]

Have just checked pin five. have earth there ran a earth to battery along side earth on pin 5just to check ,still nothing .i take I am right in saying the only thing that tells the injectors to pluses is the dizzy and the ecu ????

yes the hall sensor and the ecu. however the cam position signal to the ecu comes from the flow meter (timing ecu). The cam position sensor is connected to the flow meter. so the fault could be a bit more complicated.

try the same with pin four. pin 5 looks like the dirty earth since the screens are connected to it. sorry never saw pin 4 yesterday.

Prove the ecu isn't switching by fitting a volt meter between pin 3 on the ecu and the +on the battery you should see the volts bounce about when cranking. if its is bouncing about I assume you've got a loom fault to the injectors.