bad injectors?

[nathan_spindler55]

so trying to help my friend get his new build running. been trying to start it for about a week now. motor is a new build with ecmlink v3. precision 1200s, fp red, walbro pump, fuel lab filter, and aero regulator. we have spark, we have dead on timing, have compression, and have 43.5 psi on the regulator gauge so we got fuel. couldnt figure out why the damn thing wouldnt start. just cranked and cranked wouldnt fire even a lil bit. so today we sprayed starting fluid in the vacuum line to the intake manifold and it actually fired up for a second. is it possible that his brand new precision injectors are bad? we have them compensated on the laptop so thats good. and he bought them off ebay so im thinking they are bad. has anyone had this problem? we are going to put stock injectors in tomorrow and set the laptop to the stock setting and try again. just wondering if anyone has ran into this problem or there is something else we are overlooking?

 

[97 eclenger]

if stock injectors don't fix it, check the cam angle sensor. that one sends fuel injector signal to the ecu. there's also a resistor pack for the injectors on the firewall.

 

[nathan_spindler55]

awesome thats what i wanted to hear. we have two cam sensors and i have one that i know for sure works. so we will give that a try. thanks for the info.

 

[97 eclenger]

np man. hopefully it will fix the issue

 

[nathan_spindler55]

me too, i will post my results tomorrow. we wana hear this beast idle!

 

[nathan_spindler55]

so today we went and put stock injectors in and set the ecu up for them and even changed the injector resistor. still wouldnt fire. so then swapped a working green top cas in there and we got it to run up until we blew the little rubber hose that connects the regulator to the fuel return hard line. it wasnt the right hose it was just some extra that we had laying around so were gna get some actual fuel hose and put it on there. thanks for the help now we know the motor runs and sounded pretty damn healthy!