computer problem

cars463

Forum Member
I've got a 91 mustang 5.0 auto with the anp computer that was just remanned and it still has the same problem of a constant ground to injector number 1. Is there anything other than the computer that anyone knows about. We're dumbfounded.
 
Could someone refer me to someone who would know? I appreciate the views on the topic but help would be much better. Maybe a phone number or email address?
 
I don't know what an ANP computer is but it sounds like a bad injector driver internally within the ECU. On most computers instead of the power being sent to the injector the ecu controls the ground for the injector instead. If the injector is constantly being grounded out then it sounds like a bad driver.
 
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Ill look into it and call the reman company and see if they know anything about that. I don't want to get into the computer but thanks for the input
 
Can I assume you went through all the harness, swapped the injectors, etc?
The driver problem sounds like the most likely suspect.
 
went through the harness and swapped injector plugs. I was thinking of trying a new injector but I wanna see if I've got another computer first and call the company who remanufactured it.
 
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