XJ40 ( XJ81 ) 1986 - 1994

No pulse to injectors aj6 3.6

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Old 06-04-2024, 08:28 PM
jagcoupes's Avatar
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Default No pulse to injectors aj6 3.6

I know this has been a common thread but I cannot find the answer?
My 3.6 had been running fine. It sat for about month in fairly wet weather. It started then died and i haven't been able to start it since.
It has spark and will fire with go juice
It has strong fuel pressure to the rail with a new pump will run the mandatory 2 seconds
But No pulse to the injectors
So far I have replaced the crank angle sensor, and the ignition amplifier with no luck.
Could it be the ECU? i dont have another to test it with. I'm told the ECU is pretty tough and rarely fail.
Boot is is dry with little condensation so it didn't get wet.
I'm at a loss any suggestions would be appreciated
TJM
 
  #2  
Old 06-05-2024, 01:42 AM
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Check for water ingress at footwell and look at connectors to ECU and try re-plugging. Cracked joints or corrosion in fuse boxes can also be suspect in causing electrical faults.

 
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Old 06-05-2024, 03:20 AM
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Thanks Lawrence will check
 
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