No injector pulse

Good evening,

Yes, if it runs on fuel then the injectors are not being pulsed.

I attached a picture of the ECM and a wiring diagram of just the injectors.

Roy

I agree with Roy. However, the only thing you need to check first would be a security lock out. On this truck the BCM and PCM will cut the fuel injectors if there is a security issue. However, the last line in the attachment should be the telltale if this is the issue.

If the vehicle starts then stalls it is a security issue. I thought it important that we make that distinction. Thanks

Thanks guys for the intel. It's greatly appreciated. As far as the lock out goes, I got online and found a site that details how to reset it. See if you guys agree, first you crank the engine, leave key in run position, wait 10 minutes, security light should stop flashing and go out. turn key off, wait 5 seconds and repeat process at 3, 10 minute cycles. I did all that but my concern is the security light doesn't flash, it turns on and goes out as it should normally. That leads me to believe that there really isn't an issue with the lock out. It didn't work by the way. Please let me know what your thoughts are about that. Meanwhile. I'm going to assume that we all agree my ECM is shot. Let me know and again I sincerely appreciate your help.

If the light comes on and goes off, that is not the issue. It is working normally.

Did you verify the wiring to the ECM? If the wiring is good, then yes, the ECM is the issue.

Roy