Having a problem with my setup on tpi blazer. Its a 165 ecm and it cranks and has spark and fuel pressure but injectors wont fire. If i spray starting fluid in the intake it starts and runs fine, but if i turn it off it wont run again. I checked dist module and its good. This is the weirest thing ive had happen. It was running fine last night and when I went to start it this morning, nothing. Im stumped and getting mad.ANy help please??

 

well i'm no efi expert but i'd suspect something in the fuel system. i'd check preasure, volumn, FPR, and the injectors.

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ICON Motorsports

1st & 3rd
MM Black Diamond 538 F&AM

 

Well figured it out in case anyone else ever has this problem. The injectors would lose voltage when I would crank it over. I still cant figure out why it just started doing this after running fine for a while. So I had to tap the injectors power in from a source that still had good power while cranking.