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> Engine swap not starting!! Need help ASAP, HELP!! Emergency!
post Jun 4, 2013 - 10:31 AM
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Reimrod1994

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I have a 1994 gt-s and a 1998 gt the 1994 is an american car and the 1998 is a canadian car, the 1994 is obd 1 and the 1998 is obd 2, i took the motor and wiring harness out of the 98 and put it into my 94, the wiring harness from the obd 2 motor plugged right into my obd 1 ecu no wires or anything left over, after getting everything hooked under the hood i filled it up with fresh fluids, now here is the problem..... Got in the car and i turned the key over and it just spins nothing happens, i checked the fuel filter and its dry, i tried pumping the gas and what not, i cant even hear the fuel pump running when i turn it to acc, so i pulled one plug out with a wire and there is no spark.. Anybody got ideas to what could cause this? Do i have to change over the ecu? Because the 1998 gt is a complete parts car would changing the ignition control module do the trick? I need any help i can get. I need this car running by the end f the day or my dad said hes ripping it out of the shop tomorrow with the truck even if its on jack stands.....
post Jun 4, 2013 - 11:26 AM
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cyberblader1130

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Correct me if im wrong but if you used the OBD2 wiring harness, the motor + all the sensors youll need the OBD2 ECU so it can properly monitor the sensors that aren't on the OBD1 motor.
I would try the ECU from the newer car since you already have it.
post Jun 4, 2013 - 2:31 PM
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Reimrod1994

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okay im not very sure what all the ecu is... just where i plug my wiring harness into? and would i have to switch over the ignition control module aswell? or anything else?

okay im not very sure what all the ecu is... just where i plug my wiring harness into? and would i have to switch over the ignition control module aswell? or anything else?
post Jun 4, 2013 - 4:57 PM
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Reimrod1994

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i swapped out the ecu and nothing changed, no fuel coming and no spark still frown.gif is there something that i could have forgotten to hook up that could cause these two not to work?
post Jun 4, 2013 - 5:09 PM
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richee3



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Attached to the ECU, there should be a small relay, the Circuit Open Relay or COR. It sends the signal for the fuel pump, I don't know about spark though.


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post Jun 5, 2013 - 11:47 PM
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Reimrod1994

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i changed the relay and still nothing... i really dont know what to do, i have un plugged and re plugged everything from the wiring harness twice... opinions?
post Jun 6, 2013 - 7:54 AM
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bsamps4

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Check the EFI main relay and the 15amp ST fuse, as well as the starter relay. You should hear a click from EFI main when you cycle the key to ACC.


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post Jun 7, 2013 - 2:42 PM
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Reimrod1994

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QUOTE (bsamps4 @ Jun 6, 2013 - 7:54 AM) *
Check the EFI main relay and the 15amp ST fuse, as well as the starter relay. You should hear a click from EFI main when you cycle the key to ACC.


i am hearing a click, byt still no fuel or spark, everything on the car worked perfect on the car before i started like its a mint car

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