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cotbu · 10-11-2010, 02:03 PM

104 is a ground trigger, do not send power down that wire.
If you know your ecu is good remove it. test all wire and whatnot while the battery is disconnected. The problem is in the harness.
trace wire for pins 38 & 39, you could even power those temporarily to make sure the ecu is functioning correctly. If it's not, (functioning) then you have a lot more work to do.

P.S. you can trigger the fuel pump by jumping the relay socket, sending 12v straight to the fuel pump. this bypasses the ecu trigger.

The ecu being fried will not make it's power source not function with out blowing a fuse first.
have u checked the main 75-100amp fuse just curious.

10-11-2010, 02:03 PM	#5
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 47 Posts: 3,318 Trader Rating: (3)	104 is a ground trigger, do not send power down that wire. If you know your ecu is good remove it. test all wire and whatnot while the battery is disconnected. The problem is in the harness. trace wire for pins 38 & 39, you could even power those temporarily to make sure the ecu is functioning correctly. If it's not, (functioning) then you have a lot more work to do. P.S. you can trigger the fuel pump by jumping the relay socket, sending 12v straight to the fuel pump. this bypasses the ecu trigger. The ecu being fried will not make it's power source not function with out blowing a fuse first. have u checked the main 75-100amp fuse just curious. __________________ LoverTechnologies "Half Broken Things!"