2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Fuel pump not kicking on

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Old Apr 12, 2007 | 04:30 PM
  #1  
Josh Dashnaw's Avatar
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From: Battle Ground, WA.
Angry Fuel pump not kicking on

So I have been rewiring the wires from the front to the back because of my engine swap from a automatic n/a to a turbo 5 speed that is right hand drive now. I didn't get the wiring harness to the rear of the vehicle, they were cut just on the rear side of the connectors. Any ways, there are many differences and most seem easy enough, but after hooking up all the wires that seem necessary for the fuel pump to kick on when I turn the key over, it doesnt. I've checked my grounds, and have gone over schematics again and again. There are some connecters that just don't seem to have anything to plug into under the dash, but don't believe those are what is keeping me from firing this thing up. It turns over good, and Im sure if it just got some fuel it would start right up. Any Ideas, Maybe someone who can build a rear wiring harness for the this swap. or where I could find a used one from japan for that model. Also when i turn the key on there is a clicking sound for a second and then a constant hum in the engine compartment. Anything info can help out Thank You, thoroughly confused.
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Old Apr 12, 2007 | 04:56 PM
  #2  
Josh Dashnaw's Avatar
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From: Battle Ground, WA.
Should I get some pics if it would help? I've been working on this project for awhile, ,sure would like to here start up.
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Old Apr 12, 2007 | 07:48 PM
  #3  
J-Rat's Avatar
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From: Hood River oregon
It wont kick on when you turn the key on. You have to put it to start or jumper the fuel test connector. Did you install the jumper?
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Old Apr 13, 2007 | 10:57 AM
  #4  
Josh Dashnaw's Avatar
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From: Battle Ground, WA.
As for as I know it is all connected. I'm not sure about a jumper though, where is that located. From experience on other vehicles when you turn the key all the way on the fuel pump will kick on for a second and build up pressure for when you start it, and you can usually here it make a whinning noise. But I have tried turning it over though and nothing. There must be something in the wiring that I'm missing. I thought maybe bad grounds so I jumped the ground wire directly to it, but nothing.
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Old Apr 13, 2007 | 11:18 AM
  #5  
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From: Indiana
Hey I don't have a solution to ur fuel pump problem but i just open up an acount on here and don't know how to post anything, so I have a question I have to change the heater core on my rx7 and have no idea where to start. can u help? I have 1990 GXL
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Old Apr 13, 2007 | 12:26 PM
  #6  
87 t-66's Avatar
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From: Columbus, Ohio
Originally Posted by speedmachie0607
Hey I don't have a solution to ur fuel pump problem but i just open up an acount on here and don't know how to post anything, so I have a question I have to change the heater core on my rx7 and have no idea where to start. can u help? I have 1990 GXL
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Old May 7, 2007 | 03:05 PM
  #7  
Napsterfreak15's Avatar
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From: Rockford, IL
Bump.

looking for a NA TII swap rear harness write up also
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Old May 7, 2007 | 11:18 PM
  #8  
86gxl_fc's Avatar
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From: dallas, TX 75228
okay, i've been told recently that what your thinking it should do is prime the fuel lines.
but not on this car, as far as the car goes it doesnt even have time to prime so it'd be useless.
the jumper wire is a yellow plug under the AFM.. or in your case if the JDM harness is anything like the USDM, it should be under the airfilter box off of the passenger side harness.
i'm kind of havin the same problem...
my problem is that my fuel pump doesnt stay ON... good luck on yours tho
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