starting issue (injectors)

[Lottaboost]

Ok i have a 99 GSX with AEM set up for Map
I just replaced the block and intake and now i can't get the car started.
I have spark, presure at the rail (gauge) and yet i have no injector function.

Which sensor controls the injectors?

Is it the crank sensor? or the sensor of the the back of the intake cam?

Please any insite would be great!

 

[Lottaboost]

Ok i have a 99 GSX with AEM set up for Map
I just replaced the block and intake and now i can't get the car started.
I have spark, presure at the rail (gauge) and yet i have no injector function.

Which sensor controls the injectors?

Is it the crank sensor? or the sensor of the the back of the intake cam?

Please any insite would be great!

 

[Old Mitsu Tech]

Injector function is controlled by the ecu. You will have one of two things. No 12 volts to injectors which is easily checked with test light. Or no pulse which is controlled by the ecu or to be politically correct the pcm. This is a ground control circuit. Use a diagnostic chart that hopefully is provided with your aem to test for possible injector control loss. Put a test light on the positive cable of your battery and check the control circuit while cranking. Flickering light means ground being made and broken. Also use an automotive stethescope and listen for the metallic click at each injector. If it ran before the aem then the aem or installation is the reason for no injector pulse.

 

[GVR4592]

Are you 100% positive the injectors aren't firing?

 

[spyderturbo007]

which is easily checked with test light.

Make sure you don't use a normal test light. The resistance on a normal test light is too high for the injector circuit. You will want to get a noid light. Just make sure you pick up one with the correct plug for the injectors.