89 mustang

I have a 89 5.0 . I have a fuel injector that seems to be just pumping stream of fuel . I tested the injector with a noid light to see if it is pulsating it is not it is just staying hot. i was told this means the ecm (computer) is bad . Any ideas

send the ecu to get tested, but also check that the injector wire is intact. like not corroded and touching the frame.

Sounds like an injector problem. Swap a new in there and see what it does.

Thanks For everyone's help. It was the computer and now it is running great.
We took a 1194 bulb and plugged it in the injectors to test them( a homemade noid light)