99 gc8 injectors not pulsing

[ginganinja]

After some help getting my engine running.

 

Installing motor back into my car finally butbj cant get it running. I have done split rail system using two factory regs. Using the same engine loom that it was running on last time it was going, v5-6 yellow injectors from another car but same injector.  I have spark and plenty of compression. However I have the issue where the injectors are not pulsing. I can't hear any ticking noise through screw driver when turning car over.

 

Car cranks over but doesn't fire, also fuel is getting through the system and all fuel hoses are plumbed correctly. Fuel pump is priming as it should etc.

 

Injectors all check to have no resistance and engine loom has checked out good.

 

Is there anything else I need to check or am missing??, I am a bit stumped.

 

Car ran perfect last time it started.

[Gripless]

Does the ecu have a good crank and cam sensor reading. Maybe it’s not turning on the injectors until it knows the timing is correct. 
 

You said same loom but is it same ecu as well? Any chance the pins are wrong or possibly a ground missing. 

[ginganinja]

25 minutes ago, Gripless said:

Does the ecu have a good crank and cam sensor reading. Maybe it’s not turning on the injectors until it knows the timing is correct. 
 

You said same loom but is it same ecu as well? Any chance the pins are wrong or possibly a ground missing. 

Same loom and same ecu. How would I know the cam sensor readings? Pins have not been touched.

 

I am guessing crank and cam sensors are working ok as I have plenty of spark.

 

Also have grounds on by the starter motor and ground on the front radiator support.

Edited December 29, 2019 by ginganinja

[Gripless]

Log the ecu or look at any error codes. 
grounds for the ecu or sensor loom all attached?

[ginganinja]

Ok so I solved the issue and not sure what was causing the problem  but here's how it went.

 

Removed each injector and reinstalled them. I figured that at least this would mean fuel would leak into the cylinder and hopefully fire.

 

Bingo. Engine purring like it should. 

 

Not sure if there must have been air in the system or what but it's running mint now.