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Old 10-10-2016, 07:02 PM   #7
Chrispbrown36
Registered User
 
Join Date: Apr 2014
Location: Cunningham, KY
Posts: 351
Re: Throttle body issues

I am at the end of my rope on this. I have done everything but rip the intake and valve covers back off and can not figure out why the truck won't start. I have fuel pressure, I have spark, I have pulse at the injectors, the injectors test fine, I have changed the coil, I had the ignition module tested and it tested fine, I have checked the ground and all are good, all fuses are good.
The only thing I am iffy on is the voltage at the injectors. I tried testing with a 9v battery originally and got nothing, which lead me to believe that the injectors were bad. But I eventually tested them off of a 12v battery and they will fire fine. When I test the voltage at the injectors off of the harness I am only getting about 9 volts, so if they will not fire when tested with a 9v battery then I would assume that the 9 volts they are getting while cranking the engine is not enough to fire them either. But....where am I losing voltage?
I am about to the point where I am going to order an adapter plate and put a carb on it!
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