warrenp Posted February 18, 2003 Share Posted February 18, 2003 got a question i have just wired up my vg30et in to my 4x4 nissan and my ECU lights are not lighting up. i thought that i have got everything pluged in. any idea on what i may be missing? i figure i must have left somthign out. Quote Link to comment Share on other sites More sharing options...
clint78z Posted February 19, 2003 Share Posted February 19, 2003 The lights don't just light up when you have the power on, they are meant to give diagnostic codes when running rev it up to like 1800rpm or something for a couple of minutes then they begin to flash. Quote Link to comment Share on other sites More sharing options...
warrenp Posted February 20, 2003 Author Share Posted February 20, 2003 ohhh, i thought that they was always on? i can't rev it up. it doesn't run. i'm trying to do my first conversion, so bare with me. Quote Link to comment Share on other sites More sharing options...
clint78z Posted February 20, 2003 Share Posted February 20, 2003 You can still test alot of things on the truck much like was it carbed. First step are you sure you have proper switched and constant power to the ECU and it is grounded properly. Next when you turn the switch on does the fuel pump turn on ?? Pull a plug out and lay it next to the engine block, it should snap a spark across. If not are the plugs wet with fuel ?? Take one thing at a time testing easiest to hardest and eliminate it as a problem. A diagram of all the sensors helps, ooh look what I have poof http://www.geocities.com/MotorCity/Shop/1553/eccs3.jpg Engine still needs the basics air, fuel, spark Quote Link to comment Share on other sites More sharing options...
warrenp Posted February 21, 2003 Author Share Posted February 21, 2003 fuel pump isn't hooked up either. i'm going to have it hooked up by a switch. i bought an aeromotive fuel pump. kinda over kill it's rated for like 1000hp or 1200hp. i can't test spark either. coils isn't hooked up the harness. i know your probably like "just hook it up" since my truck was a 4 cylinder and had 8 spark plugs and had 2 coils. still isn't a problem. i need the plugs that go to the coils. i seem to have lost them. they attatch to the mounting brackt for the coils. i gotta go to the junk yard hopefully this weekend and get some. thanks!! you have been alot of help!!!! i'm sure i will have more questions for you. Quote Link to comment Share on other sites More sharing options...
Guest MegaShaft_2000 Posted February 22, 2003 Share Posted February 22, 2003 got a questioni have just wired up my vg30et in to my 4x4 nissan and my ECU lights are not lighting up. i thought that i have got everything pluged in. any idea on what i may be missing? i figure i must have left somthign out. Hi, I used to have a 1986 300ZX Turbo that had the same engine that you have. I recall checking the error codes on my ECU. I seem to remember that there was a little hole on the side of the ECU revealing a screw that you had to turn in order for the ECU to display the error codes. I think it was a flathead screw that you had to give a half turn, or something like that. If you didn't turn that screw, the 2 LED's wouldn't light up. Quote Link to comment Share on other sites More sharing options...
Bernardd Posted March 2, 2003 Share Posted March 2, 2003 Warren, make sure you have power at the following pins: 114, 27,35 and I believe pin 9 is the start pin. I just finished wiring up my ecu test bench and got caught out by the 27, 35 pins. Both my 85 and 86 ecu's light up the lights with the key on. If you need more help let me know. Bernard Quote Link to comment Share on other sites More sharing options...
warrenp Posted March 2, 2003 Author Share Posted March 2, 2003 i need alot of help. some i'm using a wiring harness from a automatic. some one sent me a PM saying i need to ground something out becasue i'm using a automatic harness on a manual tranny. i can't remember what it was i needed to ground out and i must have erased the PM by mistake. and i have no idea on what pins are? i'm guessing it the connection from the wiring harness to the ecu? i am truely lost Quote Link to comment Share on other sites More sharing options...
warrenp Posted April 14, 2003 Author Share Posted April 14, 2003 any other ideas ojn why my ecu is not lighting up???? Quote Link to comment Share on other sites More sharing options...
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