rb25det neo all sensors read fine but spark is too weak and engine cant start

[khaled DRiFT]

rb25det neo all sensors read fine but spark is too weak and engine cant start 

all sensors read very fine 

no errors !!

 

[Simon]

Make sure you have the correct coil / igniter combo.

The late coils had an inbuilt igniter but earlier ones did not.

To check measure the resistance between the power and signal wire. If its low around 1ohm then you need an external igniter.

Also check the voltage to the coils. If this is not 10 or more volts you will have a weak spark.

 

[khaled DRiFT]

it have a built in igniter when i test the ignition from the ignition test it work fine but when i start the engine it don't work .. i think it may be at the trigger setup but the rpm read right values and at run-time values window ( trig. 1 & trig. 2 & sync ) is ok and there is no fault 

 

[khaled DRiFT]

CAS is reading good no faults and trigger scope is ok , injectors are working siq. but spark is not work while i start the engine .

when i test the ignition coil from the ignition test it work fine ! 

i can't find the problem

 

[Ducie54]

Where is the 12v feed to the coils taken from? It may have 12v with ignition on but none during cranking.

[khaled DRiFT]

thanks it was from the fuse