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No Injector Pulse...

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Old Dec 29, 2011 | 02:20 AM
  #1  
Evo8*'s Avatar
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From: Sydney, Australia
Angry No Injector Pulse...

My car has decided to not start and I have isolated the problem to be no injector pulse.

What would be the root cause of not getting an injection pulse?

I have tried pretty much everything you can think of. Where does the pulse come from? The ECU gives the injectors 12V+ constant... I have checked every single pin on the ECU and everything seems to be fine. I have someone coming out tomorrow to test my ECU, but I honestly don't think that the ECU is the problem...

To add to the confusion, I have a tracking device in my car that can pretty much do what the hell it likes. I have spoken to the company "IntelliTrac" and they are 100% certain that if my car is cranking, it is nothing to do with their system. I beg to differ...

Could there be something else cutting my injector pulse?
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Old Dec 29, 2011 | 03:52 PM
  #2  
marcoEVO9's Avatar
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From: So cal.
check your grounds.
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Old Dec 29, 2011 | 05:55 PM
  #3  
barneyb's Avatar
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Joined: Jun 2006
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From: Grand Island, NE
Cam sensor
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Old Dec 29, 2011 | 07:33 PM
  #4  
Evo8*'s Avatar
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From: Sydney, Australia
Grounds all seem fine. I haven't messed with the grounds, but I checked just incase.

Cam sensor is giving a 5V square wave pattern. Does that count the cam sensor out?

Come on guys, My car hasn't been started in over a week. Someone please help me.
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