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J-Spec Swap: Engine Won't Crank, No Power To Anything

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Old 05-30-07, 10:28 AM
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Question J-Spec Swap: Engine Won't Crank, No Power To Anything

Hello everyone. I just recently purchased a Jspec TII s5, the motor is in the car now and wired up to the starter, i treid to crank the engine and no go. Also all the wiring from the headlights and sidemarkers are unpluged as well as the horns well everything pretty much because i painted the engine bay. So the only thing thats hooked up is the fusebox, starter to the main harness. Any ideas?
oh and the battery to :P
Old 05-30-07, 12:36 PM
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There is no power to nothing! not even the radio! Please someone help..
Old 05-30-07, 01:34 PM
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Do you have proper grounds connected to engine and chassis?
Old 05-31-07, 03:11 AM
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yeah, all i want to do is to get the motor to turn over thats all i really care about at the moment..
Old 05-31-07, 08:36 AM
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Engine, Not Motor

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Is the engine harness plugged into the body harness?
Old 05-31-07, 10:37 AM
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Thank you aaron for editing the title

Yeah the engine harness is hooked up to the body harness. I also bolted up all the grounds to the body as well, the only things that are not hooked up are the plugs for the lights, stock alarm to the hood latch, horns, coils . thats about everything that i can think of. I'll try to post some pictures later on tonight.
Old 05-31-07, 12:17 PM
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what car did you swam the motor into? was it a S4 or s5, n/a or turbo?
Old 05-31-07, 12:51 PM
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are your headslights and hazards working? try getting those to work first as it will rule out some things.

also do you have any idiot lights? any ignition? check the black wire on the positive terminal that makes it's way back to the ignition column. If this wife is not making contact with the clip then you will not get any ignition and hence you will not be able to turn on the radio or start the car...

hope this helps...
Old 05-31-07, 01:02 PM
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Sorry for not specifying the car in the first post. The car is a 1991 s5 N/A
And the car worked fine all lights worked and everything before i killed the motor.
I have none of the lights hooked up, I'll try to hook everything up and secure all the grounds and everything tonight I'll check everything. As of right now nothing is getting power i have the fuse box hooked up, the starter, the main ground to the side of the engine (one under oil filter) the one next to the trailing coil on the body harness. I also removed the emissions off the motor but i doubt that would have anything to do with this problem.
Old 05-31-07, 02:59 PM
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check the 100a fuse from the batt. w/ volt meter. that fuse supplies power to everything
Old 05-31-07, 03:03 PM
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All fuses are ok, even inside the cabin
Old 05-31-07, 04:03 PM
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Originally Posted by Straits514
All fuses are ok, even inside the cabin

Like the man said, do the headlights work or not.
Old 05-31-07, 04:10 PM
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Ummm, this may be a stupid question but...did you check your battery? Do you have a test light?
Old 05-31-07, 04:22 PM
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I had a similar problem with my J-Spec. It turned out that I didn't plug in a single wire harness, that goes to the Fuse Box in the Engine Compartment. It's a Black wire with a Red stripe (I think it connects to the small wire on the starter). Hope this helps...

Last edited by dsmrx7; 05-31-07 at 04:23 PM. Reason: typo
Old 05-31-07, 04:23 PM
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Originally Posted by F.C.3S
Ummm, this may be a stupid question but...did you check your battery? Do you have a test light?

It would be a *Crime against humanity* if someone posted a thread and had a DEAD BATTERY. some humor
Old 05-31-07, 04:45 PM
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LOL.. yes it would be funny but dont worry, I tried 2 batteries. First i charged mine on my moms car while running then i swapped them to see if it worked and no. And yes the lil black and red cable on the back of the starter is hooked up as well as everything on the fuse box.
Old 05-31-07, 04:56 PM
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Something got fried or isn't plugged in. If all you did is swap the engine, things like the interior lights etc would come on when opening the door if they were still recieving power like they were before you took the engine out.

Go back through all your steps, something has to have been over looked.

But - its an important question - do your headlights work?
Old 05-31-07, 05:01 PM
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http://www.aaroncake.net/RX-7/grounding.htm

Did you do all this?
Old 05-31-07, 10:18 PM
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OK i got the engine to crank.. Now i gets this annoying buzzing sound.

man you guys rock idk what I'd do without this forum.

I sanded down some areas where there was paint for the grounds and presto!
now i gets this annoying buzzing sound.

Last edited by Straits514; 05-31-07 at 10:40 PM.
Old 06-03-07, 12:28 AM
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I got the motor to turn on for like 2 seconds but then stops.. I checked for air leaks and stuff, nothing.. also on the upper fuel rail there is a plug where like a vacuum line goes to does anyone know what thats for?
Old 06-03-07, 10:26 AM
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Engine, Not Motor

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That's the vacuum line to the FPR. I needs to go to a vacuum source.

Is the AFM plugged in? If it's not, the car will start then die after a few seconds.
Old 06-03-07, 10:45 AM
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a disconnected water thermo sensor will make a cold engine hard to start.
Old 06-03-07, 10:58 AM
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you Are Going to get an Annoying Buzzing Sound UNTIL you get the Air out of the Cooling System,And That won't Happen until you have the car UP and Running to the Point where the Engine's Thermostat opens and the Coolant Circulates enough to get the air out.The Buzzer is the Low coolant Buzzer(I'll bet you a Coffee on that one)..and if you Want to rule it out,take the wire off the Sender and Ground it.(just for a Second,If the buzzer goes off,I am Right!)
Old 06-03-07, 11:08 AM
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Boost sensor plugged in/hooked up? AFM? CAS? Plugs fouled? Do the puffs from the engine sound strong? (good compression) You can always take out your lower plugs and add a small amount of oil to build compression while starting. I don't know... I am just thinking of things.
Old 06-04-07, 12:29 PM
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Originally Posted by Aaron Cake
That's the vacuum line to the FPR. I needs to go to a vacuum source.
Ok i got the car running. I still need to hook up the vacuum line to the fpr thats the one on the upper fuel rail that ponts to the firewall? well i got the car to start. it was a bad fuel pump relay. also the buzzing went away lol.

here is a link to the video

http://smg.photobucket.com/albums/v3...t=99ea5a50.flv


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